Search found 38 matches
An examination consists of 150 questions that are each worth one mark. Shabnam answered
Problem Solving
An examination consists of 150 questions that are each worth one mark. Shabnam answered
An examination consists of 150 questions that are each worth one mark. Shabnam answered 80% of the first 75 questions correctly. What percent of the remaining 75 questions does she need to answer correctly so as to obtain an overall score of 60%?
(A) 20
(B) 40
(C) 50
(D) 60
(E) 70
- by Mikrislac
Tue Aug 18, 2020 11:23 pm- Forum: Problem Solving
- Topic: An examination consists of 150 questions that are each worth one mark. Shabnam answered
- Replies: 1
- Views: 298
A factory can sell all the books it produces at the selling price of $60 each. It costs the factory
Problem Solving
A factory can sell all the books it produces at the selling price of $60 each. It costs the factory
A factory can sell all the books it produces at the selling price of $60 each. It costs the factory $40 in materials and labor to produce each item and an additional amount of overhead expenses of $3000 per week to operate the factory. What is the number of books that the factory must produce and se...
- by Mikrislac
Tue Aug 18, 2020 11:18 pm- Forum: Problem Solving
- Topic: A factory can sell all the books it produces at the selling price of $60 each. It costs the factory
- Replies: 1
- Views: 311
After selling a watch, Watch store found that it had incurred a loss of 10%. If Watch store had instead
Problem Solving
After selling a watch, Watch store found that it had incurred a loss of 10%. If Watch store had instead
After selling a watch, Watch store found that it had incurred a loss of 10%. If Watch store had instead sold the watch for $27 more, then it would have made a profit of 5%. If Watch store had sold the watch for a 5% profit, what would have been the actual initial loss as a percentage of the profit e...
- by Mikrislac
Tue Aug 18, 2020 11:11 pm- Forum: Problem Solving
- Topic: After selling a watch, Watch store found that it had incurred a loss of 10%. If Watch store had instead
- Replies: 1
- Views: 306
A furniture store wishes to sell 40 chairs. If each chair is sold at $156, then the store would be able to sell
Problem Solving
A furniture store wishes to sell 40 chairs. If each chair is sold at $156, then the store would be able to sell
A furniture store wishes to sell 40 chairs. If each chair is sold at $156, then the store would be able to sell all the chairs. But for every $6 increase in the price of a chair, the store will be left with one additional unsold chair. Assuming that unsold chairs will remain with the store, at what ...
- by Mikrislac
Tue Aug 18, 2020 11:04 pm- Forum: Problem Solving
- Topic: A furniture store wishes to sell 40 chairs. If each chair is sold at $156, then the store would be able to sell
- Replies: 0
- Views: 840
Raymond and Ronald are moving upwards on an escalator that is travelling up. The speeds at which Raymond and Ronald
Problem Solving
Re: Raymond and Ronald are moving upwards on an escalator that is travelling up. The speeds at which Raymond and Ronald
It is interesting to note that even though Ronald is travelling at a slower speed than Raymond, he takes fewer number of steps to reach the top. How could this happen? We can realize that since Ronald travels slower, much of his walking effort is taken up by the escalator. Consider an extreme case. ...
- by Mikrislac
Tue Aug 18, 2020 10:46 pm- Forum: Problem Solving
- Topic: Raymond and Ronald are moving upwards on an escalator that is travelling up. The speeds at which Raymond and Ronald
- Replies: 2
- Views: 368
An investment index has 12 shares. Three of these shares, namely, R, H and F have weightage
Problem Solving
Re: An investment index has 12 shares. Three of these shares, namely, R, H and F have weightage
Let the value of the index be 100. Then, the shares of R, H and F have the respective values: 7, 13 and 15. The remaining shares would have the value of 100 - (7 + 13 + 15) = 65. Since the values of the shares rose by 9%, 10% and 4%, the new values of R, H, and F wil be 7.63, 14.3 and 15.60. The new...
- by Mikrislac
Tue Aug 18, 2020 10:19 pm- Forum: Problem Solving
- Topic: An investment index has 12 shares. Three of these shares, namely, R, H and F have weightage
- Replies: 3
- Views: 332
A pet shelter holds forty dogs and cats. The average age of the dogs is 16.66 months and the average age of the cats
Problem Solving
A pet shelter holds forty dogs and cats. The average age of the dogs is 16.66 months and the average age of the cats
A pet shelter holds forty dogs and cats. The average age of the dogs is 16.66 months and the average age of the cats is 18.75 months. The average age of all the animals combined is 17.5 months. The difference between the number of dogs and cats is eight. How many cats live in the shelter? (A) 12 (B)...
- by Mikrislac
Wed Aug 12, 2020 11:56 pm- Forum: Problem Solving
- Topic: A pet shelter holds forty dogs and cats. The average age of the dogs is 16.66 months and the average age of the cats
- Replies: 0
- Views: 295
An investment index has 12 shares. Three of these shares, namely, R, H and F have weightage
Problem Solving
An investment index has 12 shares. Three of these shares, namely, R, H and F have weightage
An investment index has 12 shares. Three of these shares, namely, R, H and F have weightage of 7%, 13% and 15% respectively. Over a period of two years, the prices of these shares rose by 9%, 10% and 4% respectively and the index rose by 6%. What was the increase in the prices of the remaining share...
- by Mikrislac
Wed Aug 12, 2020 11:46 pm- Forum: Problem Solving
- Topic: An investment index has 12 shares. Three of these shares, namely, R, H and F have weightage
- Replies: 3
- Views: 332
Mona travels from town D to town A at a constant speed of 60 km/hr and from town A to town J at a constant speed
Problem Solving
Mona travels from town D to town A at a constant speed of 60 km/hr and from town A to town J at a constant speed
Mona travels from town D to town A at a constant speed of 60 km/hr and from town A to town J at a constant speed of 80 km/hr. She calculates her overall average speed in going from towns D to J via A to be 65 km/hr. What is the ratio of the distances "D to A" and "A to J"? (A) 2 ...
- by Mikrislac
Tue Aug 11, 2020 4:55 pm- Forum: Problem Solving
- Topic: Mona travels from town D to town A at a constant speed of 60 km/hr and from town A to town J at a constant speed
- Replies: 2
- Views: 387
Three workers are hired to build a wall. Worker A can build the wall in 10 days if they work alone
Problem Solving
Three workers are hired to build a wall. Worker A can build the wall in 10 days if they work alone
Three workers are hired to build a wall. Worker A can build the wall in 10 days if they work alone. Worker B can demolish the wall in 15 days and worker C can demolish the wall in 20 days. Worker A starts work on the first day and worker B starts work on the second day. On the third day, worker A wo...
- by Mikrislac
Tue Aug 11, 2020 4:46 pm- Forum: Problem Solving
- Topic: Three workers are hired to build a wall. Worker A can build the wall in 10 days if they work alone
- Replies: 1
- Views: 383
Two runners are racing on a circular track that is 500 m long. They start from the same point on the track
Problem Solving
Two runners are racing on a circular track that is 500 m long. They start from the same point on the track
Two runners are racing on a circular track that is 500 m long. They start from the same point on the track and run in the same direction. The ratio of their speeds is 2 : 3. The faster runner travelled a total distance of 8 km. How many times did the runners meet each other on the track? (1 km = 100...
- by Mikrislac
Mon Aug 10, 2020 11:20 pm- Forum: Problem Solving
- Topic: Two runners are racing on a circular track that is 500 m long. They start from the same point on the track
- Replies: 2
- Views: 726
Raymond and Ronald are moving upwards on an escalator that is travelling up. The speeds at which Raymond and Ronald
Problem Solving
Raymond and Ronald are moving upwards on an escalator that is travelling up. The speeds at which Raymond and Ronald
Raymond and Ronald are moving upwards on an escalator that is travelling up. The speeds at which Raymond and Ronald are moving are in the ratio 2 : 1. Raymond has to climb 40 steps to reach the top, while Ronald has to climb 30 steps to reach the top. The escalator had to be turned off due to an eme...
- by Mikrislac
Mon Aug 10, 2020 11:07 pm- Forum: Problem Solving
- Topic: Raymond and Ronald are moving upwards on an escalator that is travelling up. The speeds at which Raymond and Ronald
- Replies: 2
- Views: 368
A grocer bought 10 dozen bottles of jam at $18 per dozen from the wholesale market. The grocer found
Problem Solving
Re: A grocer bought 10 dozen bottles of jam at $18 per dozen from the wholesale market. The grocer found
The total cost price (CP) of the ten dozen bottles at $18 a bottle is equal to 10*$18 or $180. The transportation costs equal $24. So, the total CP = $180 + $24 = $204. Since the grocer earned a profit of 10%, this must mean that they earned a profit earned of $20.4 (10% of $204). So, the grocer's s...
- by Mikrislac
Mon Aug 03, 2020 10:12 am- 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: 485
Re: Carol bought a toolbox for $X and then sold it for $Y
ALTERNATIVE METHOD: Let the cost price (CP) X be $100. Since the article was sold at a profit of 20%, its selling price (SP) would be $120. We are given that If the toolbox had cost 15% less, its CP would have been $85. If the SP of the toolbox had been $76 less, then the profit would have been 30%...
- by Mikrislac
Mon Aug 03, 2020 9:57 am- Forum: Problem Solving
- Topic: Carol bought a toolbox for $X and then sold it for $Y
- Replies: 2
- Views: 417
Carol bought a toolbox for $X and then sold it for $Y
Carol bought a toolbox for $X and then sold it for $Y, thereby earning a profit of 20%. Had the value of X been 15% less and the value of Y $76 less, Carol would have earned a profit of 30% . What was the value of X?
A. $400
B. $600
C. $640
D. $800
E. $840
- by Mikrislac
Sun Aug 02, 2020 4:07 pm- Forum: Problem Solving
- Topic: Carol bought a toolbox for $X and then sold it for $Y
- Replies: 2
- Views: 417