Search found 30 matches
I think the answer should be E. From given info, 3/5 * 80 = 48 48 = J + CE - both From 1, c >10, Not sufficient. From 2, J > 3C, C = 15, J=50 C =10 , J= 39 Not sufficient From 1 and 2 we still can have multiple values for J C = 15, J=50 C = 20, J = 61 hence both statements are also not sufficient. H...
- by nitink
Tue Dec 03, 2019 11:36 am- Forum: Data Sufficiency
- Topic: A certain local newspaper has 80 employees. Of the employees
- Replies: 1
- Views: 507
From given info, N = 1.25M
from 1, M = 0.8 N, which is the same as the given info, hence not sufficient.
From 2, N =10+ M
using given info , we can solve for M.
Hence, this is alone sufficient.
Answer B.
- by nitink
Tue Dec 03, 2019 11:12 am- Forum: Data Sufficiency
- Topic: The temperature of a place at noon on a certain day is 25% h
- Replies: 1
- Views: 428
I think the answer should be E for this question. From 1, we dont know anything about other months. Hence, not sufficient. From 2, To calculate the occupancy rate for February, we need to know the occupancy rate on 31st January, but we dont know the occupancy rate on 31st January. Hence not sufficie...
- by nitink
Tue Dec 03, 2019 11:09 am- Forum: Data Sufficiency
- Topic: Occupancy rate is defined as the number of units occupied
- Replies: 1
- Views: 359
We need to know all the sides of the trapezium to find the perimeter. From 1, in triangle ABE, By Pythagoras theorem , BE = 6. so ,EC = 20 - 6 =14 But we still don't know the length of AD and CD , so cant find the perimeter. from 2, we still dont know the length of AB and CD. So, cant find the perim...
- by nitink
Tue Dec 03, 2019 11:01 am- Forum: Data Sufficiency
- Topic: In the trapezoid ABCD above, BC = 20, and AE = 8. What is
- Replies: 1
- Views: 426
To know the value of 3A + B, we need to know the value of each A and B or from the statements given, we need to put the equations in the form of 3A +B From 1, we cant find either A or B , nor can we find reduce the equation to 3A +B form. Hence not sufficient. From 2, we cant find either A or B , no...
- by nitink
Tue Dec 03, 2019 10:47 am- Forum: Data Sufficiency
- Topic: A and B are polynomials. What polynomial is 3A + B?
- Replies: 2
- Views: 586
Let the number of half-gallon carton be h and quarter-gallon carton be q Given h + q = 300 From 1 : q=120, so h =300-120 = 180 since we know the no. of individual cartons sold, so we can find out the total no. of gallons of milk sold. From 2: 1/2 * h = 90 h= 180 so, q =120 As in 1, since we know the...
- by nitink
Tue Dec 03, 2019 10:39 am- Forum: Data Sufficiency
- Topic: A store sells milk in cartons of two sizes, one-half gallon
- Replies: 1
- Views: 546
See the image above. Let the total no of student be 100
Females = 40, so mles = 100 - 30 =60
FM = 30 , So, non-FM = 100 - 30 =70
Given that x/30-x = y / 70-y and x+y = 40
so, y = 28,
70-y = 42
so, probability = 42/100
In percentage terms, 42%
- by nitink
Wed Nov 27, 2019 11:23 pm- Forum: Problem Solving
- Topic: In a given finance lecture, 30% of the students are finance
- Replies: 5
- Views: 1131
4^A + 4^(A+1) = 4^(A+2) - 176
Take 4^A common from LHS, 4^A (1+ 4) = 4^A . 4^2 - 11. 4^2
take 4^2 common from RHS, 5. 4^A = 16 (4^A -11)
(5/16). 4^ A = 4^A -11
11= 4^A (1 - 5/16)
11= 4^A . 11/16
16= 4^A
4^A = 4^2
so, A=2
- by nitink
Wed Nov 27, 2019 10:38 pm- Forum: GMAT Math
- Topic: If 4a + 4a+1 = 4a-2 -176, what is the value of a?
- Replies: 2
- Views: 6741
reply
A - The sentence intends to say that it was not until almost 1900 that the scholars began to study. So, using "until almost 1900" is awkward. So, A is out. B - The past-perfect tense has been used in the first half of the sentence. So, the next half should use the past tense of the verb. h...
- by nitink
Wed Nov 27, 2019 10:03 pm- Forum: Sentence Correction
- Topic: Although various eighteenth and nineteenth-century American
- Replies: 1
- Views: 813
Total mixture = 100 litres (80+20) the proportion of water in the mixture is 20/100 = 1/5 and milk is 80/100 = 4/5 He sold 1/4th of 100 litres i.e 25 litres of the mixture. Now, remaining 75 litres, has 1/5th water. 1/5*75 = 15 litres of water milk = 75 -15 = 60 litres New mixture has 25+15 = 40 lit...
- by nitink
Tue Nov 19, 2019 10:14 am- Forum: GMAT Math
- Topic: Mixture replacement Problems:How to solve effectively and q
- Replies: 7
- Views: 13642
from the image, AB = 48.
BD = 80%
so, AB = 100 -80 = 20%
so, 20% of total packages = 48
so, total packages = 240
We have to find BC.
BC = AC - AB = 60% - 20% = 40%
So, 40% of 240 = 96
Answer; C
- by nitink
Thu Nov 14, 2019 8:02 pm- Forum: Problem Solving
- Topic: In a certain warehouse, 60 percent of the packages weigh les
- Replies: 3
- Views: 645
Assume that each side is 10 units. So. total area = 10 * 10 = 100 https://i.postimg.cc/N5hD0Mzq/1.png from the figure, we can see that j is the mid point of DN , so DJ = 5 /2 = 2.5. So the area of triangle JOI = 1/2 * JI * ON = 1/2 * (2.5+2.5) * 5 = 25/2. area of shaded region (4 triangles) = 4* 25/...
- by nitink
Thu Nov 14, 2019 7:50 pm- Forum: Problem Solving
- Topic: ABCD is a square. The dotted lines are the lines connecting
- Replies: 2
- Views: 571
Since the current has decreased by 1000 times. so the new current will be 1000 smaller than the original amount.
Original current = 3.8 * 10^-8
New current => 3.8 * 10^-8 /1000
= 3.8 * 10^-11
Answer C
- by nitink
Thu Nov 14, 2019 3:27 am- Forum: Problem Solving
- Topic: The microcurrent through the electrode in a dedicate circuit
- Replies: 3
- Views: 588
Option A - Wrong The argument is concerned about the planets that astronomers have detected. So, we are not concerned about the planets that astronomers are yet to detect. Option D - Correct If the astronomers have missed detecting the other smaller stars, then the conclusion is most probably wrong....
- by nitink
Wed Nov 13, 2019 10:48 am- Forum: Critical Reasoning
- Topic: Recent observations suggest that small, earthlike worlds for
- Replies: 3
- Views: 827
Using the equation : (ab)^x = a^x . b ^x
it is clear that to get 6 , on the LHS 2 and 3 must be multiplied, so 6 ^ x = 6 ^ y,
so, x= y
- by nitink
Wed Nov 13, 2019 10:38 am- Forum: Problem Solving
- Topic: If \( (3^x)(2^x)=6^y,\) which of the following must be true?
- Replies: 4
- Views: 741