Search found 38 matches
A wholesale dealer purchased two coats at the same price. One was sold
A wholesale dealer purchased two coats at the same price. One was sold at a profit of 20% and the other was sold at a price which was $1520 less than the price at which the first one was sold. If the overall profit earned by selling both the coats was 1%, what was the cost price of one coat? A. $360...
- by Mikrislac
Sun Aug 02, 2020 4:03 pm- Forum: Problem Solving
- Topic: A wholesale dealer purchased two coats at the same price. One was sold
- Replies: 1
- Views: 387
Two joggers are running along a railway track at the speeds of 4 km/hr and 5 km/hr respectively in the opposite
Problem Solving
Two joggers are running along a railway track at the speeds of 4 km/hr and 5 km/hr respectively in the opposite
Two joggers are running along a railway track at the speeds of 4 km/hr and 5 km/hr respectively in the opposite direction in which a train is travelling. The train overtakes both joggers in 10 seconds and 12 seconds respectively. What is the speed of the train in km/hr?
A. 1
B. 2
C. 3
D. 4
E. 5
- by Mikrislac
Sun Aug 02, 2020 3:58 pm- Forum: Problem Solving
- Topic: Two joggers are running along a railway track at the speeds of 4 km/hr and 5 km/hr respectively in the opposite
- Replies: 0
- Views: 260
A grocer bought 10 dozen bottles of jam at $18 per dozen from the wholesale market. The grocer found
Problem Solving
A grocer bought 10 dozen bottles of jam at $18 per dozen from the wholesale market. The grocer found
A grocer bought 10 dozen bottles of jam at $18 per dozen from the wholesale market. The grocer found that 10 bottles were broken and had to be thrown away. At what price per bottle should he sell, so as to make a profit of 10%, if he also spent $24 on transportation costs? A. $2.04 B. $2.25 C. $2.44...
- by Mikrislac
Sun Aug 02, 2020 3:55 pm- Forum: Problem Solving
- Topic: A grocer bought 10 dozen bottles of jam at $18 per dozen from the wholesale market. The grocer found
- Replies: 2
- Views: 495
Ronald and Sonam run a race that is 2000m long. Ronald gives Sonam a start of 200m and beats her by 30 seconds
Problem Solving
Re: Ronald and Sonam run a race that is 2000m long. Ronald gives Sonam a start of 200m and beats her by 30 seconds
Let the speed of Sonam be N m/second. When Ronald runs 2000 m, Sonam runs (1800 - 30N). When Ronald runs 1000 m, Sonam runs (2000 - 180N). Therefore: 2000/1000 = (1800 -30N)/(2000 - 180N) Solving for N, we get: N = 6.66 m/second. Thus, Sonam's speed = 400 m/minute and she would take 5 minutes to cov...
- by Mikrislac
Fri Jul 31, 2020 4:30 pm- Forum: Problem Solving
- Topic: Ronald and Sonam run a race that is 2000m long. Ronald gives Sonam a start of 200m and beats her by 30 seconds
- Replies: 2
- Views: 389
A train has 20 carriages, each of which is 15m long. The train takes 30 seconds to cross a man standing beside the rail
Problem Solving
Re: A train has 20 carriages, each of which is 15m long. The train takes 30 seconds to cross a man standing beside the r
Since the speed of the train is constant in the two cases (assumed), the distance travelled by the train will be directly proportional to the time it takes to cross a point (such as a standing man of negligible dimensions). We are given that 20 carriages (of length 20*15m) cross the man in 30 second...
- by Mikrislac
Fri Jul 31, 2020 4:22 pm- Forum: Problem Solving
- Topic: A train has 20 carriages, each of which is 15m long. The train takes 30 seconds to cross a man standing beside the rail
- Replies: 1
- Views: 270
Pablo and Quezon each invested some money in a business in the ratio of 4:7 respectively. After six months, Pablo
Problem Solving
Re: Pablo and Quezon each invested some money in a business in the ratio of 4:7 respectively. After six months, Pablo
Profit (P) earned by an investor is equal to their amount of investment (I) multiplied by the amount of time they invested (T). P = I*T This means that that for two investors, the profits earned will be in the following ratio: P1/P2 = I1*T1/(I2*T2) Here P1 = 4 units * 6 months = 4 (given) and P2 = 7...
- by Mikrislac
Fri Jul 31, 2020 4:14 pm- Forum: Problem Solving
- Topic: Pablo and Quezon each invested some money in a business in the ratio of 4:7 respectively. After six months, Pablo
- Replies: 1
- Views: 237
A woman driving her car reaches her destination in 30 hours. If she reduces her speed
Problem Solving
A woman driving her car reaches her destination in 30 hours. If she reduces her speed
A woman driving her car reaches her destination in 30 hours. If she reduces her speed by 1/15, then she travels 10 km less in the same amount of time. What is the original speed of the car in km/hr?
A. 4.0
B. 5.0
C. 5.5
D. 6.0
E. 7.5
- by Mikrislac
Fri Jul 31, 2020 4:00 pm- Forum: Problem Solving
- Topic: A woman driving her car reaches her destination in 30 hours. If she reduces her speed
- Replies: 1
- Views: 328
A basket holds balls of three different colors: yellow, green and brown. The number of green balls is 28 and the number
Problem Solving
A basket holds balls of three different colors: yellow, green and brown. The number of green balls is 28 and the number
A basket holds balls of three different colors: yellow, green and brown. The number of green balls is 28 and the number of brown balls is 30% less than the number of yellow balls. If the probability of picking a green ball is 7/24, then what is the number of brown balls in the basket? A. 12 B. 14 C....
- by Mikrislac
Fri Jul 31, 2020 3:56 pm- Forum: Problem Solving
- Topic: A basket holds balls of three different colors: yellow, green and brown. The number of green balls is 28 and the number
- Replies: 0
- Views: 272
A bakery shop bakes breads with the expectation that it will earn a profit of 40% on selling each loaf of bread at its
Problem Solving
A bakery shop bakes breads with the expectation that it will earn a profit of 40% on selling each loaf of bread at its
A bakery shop bakes breads with the expectation that it will earn a profit of 40% on selling each loaf of bread at its marked price. Unfortunately during transportation of the loaves of breads to a store, 16% of the loaves were completely damaged and could not be sold. Of the remaining loaves, 24% w...
- by Mikrislac
Fri Jul 31, 2020 3:53 pm- Forum: Problem Solving
- Topic: A bakery shop bakes breads with the expectation that it will earn a profit of 40% on selling each loaf of bread at its
- Replies: 1
- Views: 324
Ami, Bhami and Chani started working on a project. All three of them working together take two hours to complete
Problem Solving
Re: Ami, Bhami and Chani started working on a project. All three of them working together take two hours to complete
Let the work efficiencies of the three people be A, B and C. Let the total amount of work be 200 units. Then, A+B+C = 100 units/hour. 200/C = 4[200/(A+B)] 200/A = (1/2)*[200/(B+C)] Solve for B. We get B = 40/3 Work done by B in one hour = 40/3 units. Therefore, the required fractional amount of work...
- by Mikrislac
Thu Jul 30, 2020 4:08 pm- Forum: Problem Solving
- Topic: Ami, Bhami and Chani started working on a project. All three of them working together take two hours to complete
- Replies: 2
- Views: 563
A group of 30 employees working 4 hours a day can complete a project in 10 days. What is the number of days in which
Problem Solving
Re: A group of 30 employees working 4 hours a day can complete a project in 10 days. What is the number of days in which
First, determine the work rates of the employees in the two groups. Let M1 and M2 be the respective rates. Then, 2 employees x M1 x 2 hours = 4 employees x M2 x 1 hour. This means M1 = M2. The work rates of the two groups are the same. Let the work rate be 1 unit per hour. Then, the first group prod...
- by Mikrislac
Thu Jul 30, 2020 3:57 pm- Forum: Problem Solving
- Topic: A group of 30 employees working 4 hours a day can complete a project in 10 days. What is the number of days in which
- Replies: 3
- Views: 489
In a 40 litre mixture of paint, the ratio of blue paint to yellow paint was 4:1. A certain quantity of the mixture
Problem Solving
Re: In a 40 litre mixture of paint, the ratio of blue paint to yellow paint was 4:1. A certain quantity of the mixture
The key to solving this problem is to recognize the following concept. If the ratio of blue paint (B) to yellow paint (Y) in the original mixture was 4:1, then the same ratio for the two paints will hold when a certain quantity of the mixture is taken out. So, the ratio of Y to B in new mixture = 4:...
- by Mikrislac
Thu Jul 30, 2020 3:36 pm- Forum: Problem Solving
- Topic: In a 40 litre mixture of paint, the ratio of blue paint to yellow paint was 4:1. A certain quantity of the mixture
- Replies: 2
- Views: 604
The students at Norton School were asked to name their favorite type of pet. Of the 430 students surveyed, 258 said that
Problem Solving
Re: The students at Norton School were asked to name their favorite type of pet. Of the 430 students surveyed, 258 said
We are asked to find what 100 students would say. This is equivalent to finding the required percent of students. Number of students who said a dog was their favorite = 258. Total number of students surveyed = 430. The required percent of students is equal to 258 divided by 430. This is equal to 0.6...
- by Mikrislac
Wed Jul 29, 2020 10:01 am- Forum: Problem Solving
- Topic: The students at Norton School were asked to name their favorite type of pet. Of the 430 students surveyed, 258 said that
- Replies: 2
- Views: 392
Ami, Bhami and Chani started working on a project. All three of them working together take two hours to complete
Problem Solving
Ami, Bhami and Chani started working on a project. All three of them working together take two hours to complete
Ami, Bhami and Chani started working on a project. All three of them working together take two hours to complete the project. Chani individually takes four times the amount of time taken by Ami and Bhami working together. Ami takes half the amount of time that is taken by Bhami and Chani working tog...
- by Mikrislac
Wed Jul 29, 2020 9:24 am- Forum: Problem Solving
- Topic: Ami, Bhami and Chani started working on a project. All three of them working together take two hours to complete
- Replies: 2
- Views: 563
A water tank has four inlets. Through the first three inlets, the tank can be filled in 12 minutes. Through the second
Problem Solving
A water tank has four inlets. Through the first three inlets, the tank can be filled in 12 minutes. Through the second
A water tank has four inlets. Through the first three inlets, the tank can be filled in 12 minutes. Through the second, third and fourth inlets, the tank can be filled in 15 minutes. Through the first and fourth inlets, the tank can be filled in 20 minutes. How much time in minutes will it take for ...
- by Mikrislac
Wed Jul 29, 2020 9:16 am- Forum: Problem Solving
- Topic: A water tank has four inlets. Through the first three inlets, the tank can be filled in 12 minutes. Through the second
- Replies: 1
- Views: 401