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Directions(Q.1-5) Study the given table and answer the questions given below.

Number of students in five institutes during five years

Number of students in institutes B and C decreased by 5% and 10% respectively from 2017 to 2018. What was the difference between the total number of students in institutes B and C in 2018?

Correct

Answer – 1) 51
Explanation :
120 * 95/100 = 114
70 * 90/100 = 63
Total number of students = 114 – 63 = 51

Incorrect

Answer – 1) 51
Explanation :
120 * 95/100 = 114
70 * 90/100 = 63
Total number of students = 114 – 63 = 51

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

Directions(Q.1-5) Study the given table and answer the questions given below.

Number of students in five institutes during five years

What is the sum of total number of students in institute A in 2013 and 2014 together and in Institute D in the same years together?

Correct

Answer – 4) 321
Explanation :
Total number of students in institute A in 2013 and 2014 together = 124
Total number of students in institute D in 2013 and 2014 together = 197
sum = 197 + 124 = 321

Incorrect

Answer – 4) 321
Explanation :
Total number of students in institute A in 2013 and 2014 together = 124
Total number of students in institute D in 2013 and 2014 together = 197
sum = 197 + 124 = 321

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

Directions(Q.1-5) Study the given table and answer the questions given below.

Number of students in five institutes during five years

What is the respective ratio between total number of students in institutes B and C together in 2014 and total number of students in institutes D and E together in 2017?

Correct

Answer – 5) 21:23
Explanation :
institutes B and C together in 2014 = 189
institutes D and E together in 2017 = 207
189 : 207 => 21:23

Incorrect

Answer – 5) 21:23
Explanation :
institutes B and C together in 2014 = 189
institutes D and E together in 2017 = 207
189 : 207 => 21:23

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

Directions(Q.1-5) Study the given table and answer the questions given below.

Number of students in five institutes during five years

What is the average number of students in Institutes A, B and E in 2015?

Correct

Answer – 5) 94
Explanation :
Institutes A, B and E in 2015 = (56 + 79 + 147) / 3 = 94

Incorrect

Answer – 5) 94
Explanation :
Institutes A, B and E in 2015 = (56 + 79 + 147) / 3 = 94

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

Malini goes to a shop and buys a jewel, costing Rs 5600 including tax of 12%. The shopkeeper gives her a discount, so that the price is decreased by an amount equivalent to tax. The price is decreased by

Correct

Answer – 5) Rs 600
Explanation:
Price of jewel = Rs x
112x/100=5600
x = 5000
Sales tax = Rs.(5600-5000) = Rs 600 = Amount of discount

Incorrect

Answer – 5) Rs 600
Explanation:
Price of jewel = Rs x
112x/100=5600
x = 5000
Sales tax = Rs.(5600-5000) = Rs 600 = Amount of discount

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

The marked price(MP) of a Book is 40% less than that of magazine. The discount on the Book is 50%. What should be the discount on the magazine so that the overall discount on the magazine and the Book taken together is 37.5%

Correct

Answer – 4) 30%
Explanation:
40 % = 2/5
Let the price of magazine be 5X , so price of Book =3x
Discount on magazine = {(75 * 8X)/2*100}-{(50 *3X)/100}=1.5X
So % discount on magazine = (1.5X *100)/5X= 30%

Incorrect

Answer – 4) 30%
Explanation:
40 % = 2/5
Let the price of magazine be 5X , so price of Book =3x
Discount on magazine = {(75 * 8X)/2*100}-{(50 *3X)/100}=1.5X
So % discount on magazine = (1.5X *100)/5X= 30%

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

The ratio of work done by 20 men to work done by 30 children in same time is 8:5. If 10 men and 18 children can do a work in 12 days, then how many men would be required to finish it in 7 days.

Correct

Answer – 1) 30
Explanation:
20 M x 5 = 30 C x 8
10 men = 24 children
5 men = 12 children
10 men + 18 children = 24+18 = 42 children
Number of children required to finish the work in 7 days = (42×12)/7=72 children
72 children = 30 men

Incorrect

Answer – 1) 30
Explanation:
20 M x 5 = 30 C x 8
10 men = 24 children
5 men = 12 children
10 men + 18 children = 24+18 = 42 children
Number of children required to finish the work in 7 days = (42×12)/7=72 children
72 children = 30 men

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Ranjith’s age after 17 years will be 6 years less than twice his present age. The respective ratio between Vivek’s present age and Anil’s present age is 21 : 19. If Anil’s age 31 years hence will be same as three times Ranjith’s present age. what will be Vivek’s age 6 years hence.

Correct

Answer – 4) 48
Explanation:
Let Ranjith’s present age = X years
So X+17= 2X-6
X=23 years
Vivek’s present age = 21Y
Anil’s present age = 19Y
19Y + 31 = 3 * 23
Y=2 years
Vivek’s age 6 years hence = (21*2)+6 = 48 years

Incorrect

Answer – 4) 48
Explanation:
Let Ranjith’s present age = X years
So X+17= 2X-6
X=23 years
Vivek’s present age = 21Y
Anil’s present age = 19Y
19Y + 31 = 3 * 23
Y=2 years
Vivek’s age 6 years hence = (21*2)+6 = 48 years

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

A sum of money was invested for “X” years in scheme P offering SI. The amount received after “X” years was twice the sum of money invested in the scheme. What will be the amount received for scheme P, when a sum of Rs 6400, is invested for “2X” years.

Correct

Answer – 1) 19200
Explanation:
A * 100 =P(100 + RX)
2P * 100= P(100 + RX)
R= 100/X
A *100= P(100+RX)
A *100=6400 {100 + 100/x *2x)}
A = 19200

Incorrect

Answer – 1) 19200
Explanation:
A * 100 =P(100 + RX)
2P * 100= P(100 + RX)
R= 100/X
A *100= P(100+RX)
A *100=6400 {100 + 100/x *2x)}
A = 19200

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