Aptitude | Area

The diagonal of the floor of a rectangular closet is 7 feet. The shorter side of the closet is 4 feet. What is the area of the closet in square feet?

Byadmin July 18, 2022

Question:
The diagonal of the floor of a rectangular closet is 7 feet. The shorter side of the closet is 4 feet. What is the area of the closet in square feet?

[A].

5	1
	4

[B].

13	1
	2

[C].

[D].

Answer: Option C

Explanation:

Other side

	15		2	–		9		2
	2					2

225	–	81
4	–	4

144

6 ft.

Area of closet = (6 x 4.5) sq. ft = 27 sq. ft.

Aptitude | Probability

A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

Question:
A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

[A].

3

4

[B].

4

7

[C].

1

8

[D].

3

7

Answer: Option B

Explanation:

Let number of balls = (6 + 8) = 14.

Number of white balls = 8.

P (drawing a white ball) = 8 = 4 .

14 7

Read More A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
Aptitude | Time And Distance

If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is:

Question:
If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is:

[A].

50 km
[B].
56 km
[C].
70 km
[D].
80 km

Answer: Option A

Explanation:

Let the actual distance travelled be x km.

Then, x = x + 20

10 14

14x = 10x + 200

4x = 200

x = 50 km.

Read More If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is:
Aptitude | Problems on Numbers

In a two-digit, if it is known that its unit’s digit exceeds its ten’s digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:

Question:
In a two-digit, if it is known that its unit’s digit exceeds its ten’s digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:

[A].

24
[B].
26
[C].
42
[D].
46

Answer: Option A

Explanation:

Let the ten’s digit be x.

Then, unit’s digit = x + 2.

Number = 10x + (x + 2) = 11x + 2.

Sum of digits = x + (x + 2) = 2x + 2.

(11x + 2)(2x + 2) = 144

22×2 + 26x – 140 = 0

11×2 + 13x – 70 = 0

(x – 2)(11x + 35) = 0

x = 2.

Hence, required number = 11x + 2 = 24.

Read More In a two-digit, if it is known that its unit’s digit exceeds its ten’s digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:
Aptitude | Chain Rule

In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with remaining meal?

Question:
In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with remaining meal?

[A].

20
[B].
30
[C].
40
[D].
50

Answer: Option B

Explanation:

There is a meal for 200 children. 150 children have taken the meal.

Remaining meal is to be catered to 50 children.

Now, 200 children 120 men.

50 children 120 x 50 = 30 men.

200

Read More In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with remaining meal?
Aptitude | Logarithm

If log 2 = 0.30103, the number of digits in 264 is:

Question:
If log 2 = 0.30103, the number of digits in 264 is:

[A].

18
[B].
19
[C].
20
[D].
21

Answer: Option C

Explanation:

log (264) = 64 x log 2

= (64 x 0.30103)

= 19.26592

Its characteristic is 19.

Hence, then number of digits in 264 is 20.

Read More If log 2 = 0.30103, the number of digits in 264 is:
Compound Interest | Mathematics Mcqs

Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:_______?

Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:_______?

A. Rs. 1550
B. Rs. 1650
C. Rs. 1750
D. Rs. 2000

Read More Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:_______?

P (drawing a white ball) =	8	=	4	.
	14		7

Then,	x	=	x + 20
	10		14

50 children		120	x 50		= 30 men.
		200

log (264)	= 64 x log 2
	= (64 x 0.30103)
	= 19.26592

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