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A circular wire of radius 42 cm is cut and bent in the form of a rectangle whose sides are in the ratio of 6:5 find the smaller side of the rectangle

Correct

Incorrect

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

The sum of the ages of a mother and her daughter is 50 yrs. Also 5 year ago, the mother’s age was 7 times the age of the daughter. What is present age of daughter?

Correct

Explanation
Let the age of the daughter be x years
Then, the age of mother is 50-x years
5 years ago, 7(x-5) = 50-x-5
Or, 8x = 50-5+35= 80
X= 10

Incorrect

Explanation
Let the age of the daughter be x years
Then, the age of mother is 50-x years
5 years ago, 7(x-5) = 50-x-5
Or, 8x = 50-5+35= 80
X= 10

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

Two men undertake to do a piece of work for Rs. 200. One alone could do it in 6 days, the other in 8 days. With the assistance of a boy they finish it in 3 days. What will be boy’s share?

Correct

Explanation
1st man’s 3 days’ work = 3/6;
2nd man’s 3 days’ work =3/8
The boy’s 3 days’ work= 1-(3/6+3/8) = 1/8
Their share will be in the ratio 3/6: 3/8: 1/8= 4: 3: 1
The boy’s share =200/8 ×1=25

Incorrect

Explanation
1st man’s 3 days’ work = 3/6;
2nd man’s 3 days’ work =3/8
The boy’s 3 days’ work= 1-(3/6+3/8) = 1/8
Their share will be in the ratio 3/6: 3/8: 1/8= 4: 3: 1
The boy’s share =200/8 ×1=25

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

if two pipes function simultaneously, the reservoir will be filled in 6 hours, one pipe fills the reservoir 5 hours faster than other. How many hours does the faster pipe take to fill the reservoir?

Correct

Incorrect

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

The current of a stream runs at the rate of 4 km an hour. A boat goes 6 km and back to the starting point in 2 hours. The speed of the boat in still water is? (in km/hr)