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Quantitative Aptitude0%

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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

Directions (1-5): Study the following graph carefully and answer the questions below it.
The line graph given below shows number of students (Males & Females) passed out from various colleges in a year. (Number in thousands)

what is the average number of students (Males & Females) passed out from all the colleges together?

Directions (1-5): Study the following graph carefully and answer the questions below it.
The line graph given below shows number of students (Males & Females) passed out from various colleges in a year. (Number in thousands)

The number of Females passed out from college C is approximately what percent of the total number of Females passed out from all the colleges together?

Correct

Explanation:
35/115 * 100

Incorrect

Explanation:
35/115 * 100

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

Directions (1-5): Study the following graph carefully and answer the questions below it.
The line graph given below shows number of students (Males & Females) passed out from various colleges in a year. (Number in thousands)

The difference between the total number of students passing out from college A and the total number of students passing out from college E is what percent of the female students passing out from college C?

Correct

Explanation:
[(15+23)-(10+7)] /35 * 100

Incorrect

Explanation:
[(15+23)-(10+7)] /35 * 100

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

Directions (1-5): Study the following graph carefully and answer the questions below it.
The line graph given below shows number of students (Males & Females) passed out from various colleges in a year. (Number in thousands)

What is the respective ratio of the total number of Males to the total number of Females passed out from all the colleges together?

Correct

Incorrect

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

Directions (1-5): Study the following graph carefully and answer the questions below it.
The line graph given below shows number of students (Males & Females) passed out from various colleges in a year. (Number in thousands)

The number of Males passing out from colleges A and B together is approximately what percent less than the number of females passing out from colleges C and D together?

Correct

Explanation:
number of Males passing out from colleges A and B = 15+18 = 33
number of females passing out from colleges C and D together = 35+30 = 65
Required % = (65-33)/65 * 100

Incorrect

Explanation:
number of Males passing out from colleges A and B = 15+18 = 33
number of females passing out from colleges C and D together = 35+30 = 65
Required % = (65-33)/65 * 100

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

A sum of money is borrowed with interest being compounded annually. After 2 years the sum amounts to Rs 6480 and after 3 years the same sum amounts to Rs 7776 in 3 years. What is the total interest paid after 3 years?3 years is

Correct

Explanation:
P[1 + r/100]^3 = 7776
P[1 + r/100]^2 = 6480
Divide both
[1 + r/100] = 7776/6480
So r/100 = 1296/6480, so r = 20%
Now find P:
P[1 + r/100]^2 = 6480
Solve, P = 4500
So interest after 3 years = 7776-4500

Incorrect

Explanation:
P[1 + r/100]^3 = 7776
P[1 + r/100]^2 = 6480
Divide both
[1 + r/100] = 7776/6480
So r/100 = 1296/6480, so r = 20%
Now find P:
P[1 + r/100]^2 = 6480
Solve, P = 4500
So interest after 3 years = 7776-4500

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

A does half as much work as B does in a day. C does half as much work as A and B do together in a day. If C alone completes a work in 40 days, then in how many days B alone would complete the work?

Correct

Explanation:
A does half as much work as B does in a day. So if A does work in 2x days, then B in x days.
So A+B completes 1/x + 1/2x = 3/2x work in a day, or completes a work in 2x/3 days.
Now C does half as much work as A and B do together in a day. So if A+B in 2x/3 days, then C in 2 * 2x/3 = 4x/3 days
So 4x/3 = 40, solve, x = 30 days

Incorrect

Explanation:
A does half as much work as B does in a day. So if A does work in 2x days, then B in x days.
So A+B completes 1/x + 1/2x = 3/2x work in a day, or completes a work in 2x/3 days.
Now C does half as much work as A and B do together in a day. So if A+B in 2x/3 days, then C in 2 * 2x/3 = 4x/3 days
So 4x/3 = 40, solve, x = 30 days

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

A father decided to distribute his monthly salary to his son, daughter and wife. 32% of the salary he gave to his wife, 15% to his son and 25% to his daughter. After this, 3/4th of the remaining amount is saved which is Rs 8,400. How much amount did the father give to his son?

Correct

Explanation:
32+15+25 = 72% he gave
Remaining is 100-72 = 28%
So 3/4 * 28/200 * x = 8400
Solve, x = 40,000
So gave to son = 15/100 * 40,000

Incorrect

Explanation:
32+15+25 = 72% he gave
Remaining is 100-72 = 28%
So 3/4 * 28/200 * x = 8400
Solve, x = 40,000
So gave to son = 15/100 * 40,000

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Two circles have their circumferences equal to 220 m and 264 m respectively. What is the difference between the area of the larger circle and the smaller circle?

A bag contains 3 red, 5 yellow and 4 green balls. 3 balls are drawn at random. What is the probability that the balls drawn contain exactly 2 green balls?