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Chennai Express running at 108 kmph takes 15 seconds to cross a pole. How much time (in seconds) will Mumbai Express running at 54 kmph to cross the pole, if its length is one-third that of Chennai Express?

Correct

Answer – 3. 10 Explanation:
Length of Chennai Express= 108 * 15 * 5/18= 450 m
Now length of Mumbai Express= 450 * 1/3 = 150 m
Time taken by Mumbai Express to cross the pole = (150 * 18)/(54 *5) = 10 seconds

Incorrect

Answer – 3. 10 Explanation:
Length of Chennai Express= 108 * 15 * 5/18= 450 m
Now length of Mumbai Express= 450 * 1/3 = 150 m
Time taken by Mumbai Express to cross the pole = (150 * 18)/(54 *5) = 10 seconds

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

The marked price of Saree is 40% less than that of Shirt. The discount on the Saree is 50%. What should be the discount on the Shirt so that the overall discount on the Shirt and the Saree taken together is 37.5%.

Correct

Answer – 4. 30% Explanation:
40% = 2/5
Let the price of Shirt be 5X , Price of Saree =3X
Discount on Shirt = [(75 * 8X)/2*100]-[(50 *3X)/100]=1.5X
% discount on Shirt = (1.5X *100)/5X= 30%

Incorrect

Answer – 4. 30% Explanation:
40% = 2/5
Let the price of Shirt be 5X , Price of Saree =3X
Discount on Shirt = [(75 * 8X)/2*100]-[(50 *3X)/100]=1.5X
% discount on Shirt = (1.5X *100)/5X= 30%

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

When two fair dices are rolled, find probability of getting a greater number on the first dice than the one on second, given that the sum should be equal to 6.

Correct

Answer – 4. 2/5
Explanation :
Total no of ways to get a sum equal to 6 on the two dice are 5(i.e) (1,5),(5,1),(2,4),(4,2),(3,3)
Required probability = 2/5.

Incorrect

Answer – 4. 2/5
Explanation :
Total no of ways to get a sum equal to 6 on the two dice are 5(i.e) (1,5),(5,1),(2,4),(4,2),(3,3)
Required probability = 2/5.

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

Priyanka & Raji started a business. Raji invests an amount which is Rs 500 more than Priyanka. At the end of six months from the start of business, Priyanka & Raji double their respective investments. If the annual profit earned was Rs 5200 and Priyanka’s share from the annual profit was Rs 1600, what was Raji’s initial investment?

Correct

Answer – 1. 900 Explanation:
let A’s initial investment =Rs X
B’s initial investment = Rs (X + 500)
B’s profit = 5200-1600= 3600
X / (X+500)= (1600/3600)
X= 400
Raji’s initial investment = X + 500 = 900.

Incorrect

Answer – 1. 900 Explanation:
let A’s initial investment =Rs X
B’s initial investment = Rs (X + 500)
B’s profit = 5200-1600= 3600
X / (X+500)= (1600/3600)
X= 400
Raji’s initial investment = X + 500 = 900.

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

A Cistern has a capacity of 120 litre and has two inlets L & M. When both the inlets were opened simultaneously for 3 hours, they were able to fill 35 litre water in the Cistern. If inlet L alone can fill the empty Cistern completely in 24 hours. How many hours will inlet M take to fill the empty Cistern completely?

Correct

Answer – 4. 18 Explanation:
Cistern filled by L in 1 hour = 120/24=5 litre
Cistern filled by (L+M) in 1 hour = 35/3 litre
Cistern filled by M in 1 hour = 35/3-5 = 20/3 litre
Time taken by M to fill the Cistern completely = 120 /(20/3) = 18 hours

Incorrect

Answer – 4. 18 Explanation:
Cistern filled by L in 1 hour = 120/24=5 litre
Cistern filled by (L+M) in 1 hour = 35/3 litre
Cistern filled by M in 1 hour = 35/3-5 = 20/3 litre
Time taken by M to fill the Cistern completely = 120 /(20/3) = 18 hours

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

The length of a rectangle is 2/5th of the side of a square. The radius of a circle is equal to side of the square. The circumference of the circle is 132 cm. What is the area of the rectangle, if the breadth of the rectangle is 20 cm?

Correct

Answer – 3. 168 cm²
Explanation :
Circumference of the circle = 132
2πR = 132; R = 21 cm
Side of square = 21 cm
Length of the rectangle = 2/5 * 21 = 42/5
Area of the rectangle = 42/5 * 20 = 168 cm²

Incorrect

Answer – 3. 168 cm²
Explanation :
Circumference of the circle = 132
2πR = 132; R = 21 cm
Side of square = 21 cm
Length of the rectangle = 2/5 * 21 = 42/5
Area of the rectangle = 42/5 * 20 = 168 cm²

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