Mathematics Mcqs | Simplification and Approximation

12.5 + 10 1/4 of 100 ÷ 10% of 10 = ____________?

Byadmin July 24, 2019July 31, 2021

12.5 + 10 1/4 of 100 ÷ 10% of 10 = ____________?

A. 1037.50
B. 1157.50
C. 103.75
D. 1038
Explanation:
12.5 + 10 1/4 of 100 ÷ 10% of 10
= 12.5 + 41/4 of 100 ÷ 10/100 of 10
= 12.5 + 41(25) ÷ 1 = 12.5 + 1025 = 1037.5

Areas | Mathematics Mcqs

If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?

If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?

A. 15
B. 10
C. 14
D. 12

Read More If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?
Mathematics Mcqs | Percentage Mcqs

In an examination, 47% failed in English and 54% failed in Mathematics. Find the pass percentage in both the subjects if 31% failed in both the subjects?

In an examination, 47% failed in English and 54% failed in Mathematics. Find the pass percentage in both the subjects if 31% failed in both the subjects?

A. 70%
B. 37%
C. 53%
D. 30%

Read More In an examination, 47% failed in English and 54% failed in Mathematics. Find the pass percentage in both the subjects if 31% failed in both the subjects?
Mathematics Mcqs | Percentage Mcqs

If 15% of 30% of 50% of a number is 90, then what is the number?

If 15% of 30% of 50% of a number is 90, then what is the number?

A. 4000
B. 3050
C. 4400
D. 4500
E. None of these
Let the number be a
Given, 15/100 * 30/100 * 50/100 * a = 90
=> 3/20 * 3/10 * 1/2 * a = 90
=> a = 10 * 20 * 10 * 2 = 4000.

Read More If 15% of 30% of 50% of a number is 90, then what is the number?
Mathematics Mcqs | Percentage Mcqs

Two tailors X and Y are paid a total of Rs. 550 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week?

Two tailors X and Y are paid a total of Rs. 550 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week?

A. Rs. 200
B. Rs. 250
C. Rs. 300
D. None of these

Read More Two tailors X and Y are paid a total of Rs. 550 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week?
Mathematics Mcqs | Ratio and Proportion

Three quantities X, Y and Z are such that XY=kZ where k is constant. Initially, X was at 4 and X:Y:Z was 2:3:4. If the value of Y is changed to 12 and Z is kept constant, find the value of X.

Three quantities X, Y and Z are such that XY=kZ where k is constant. Initially, X was at 4 and X:Y:Z was 2:3:4. If the value of Y is changed to 12 and Z is kept constant, find the value of X.

A. 2
B. 3
C. 5
D. 6
X:Y:Z=2:3:4
X=4
Then, Y=6, Z=8 XY=kZ 4*6=k*8 8k=24 k=3
Y=12, Z=8
X*12=3*8
X=2

Read More Three quantities X, Y and Z are such that XY=kZ where k is constant. Initially, X was at 4 and X:Y:Z was 2:3:4. If the value of Y is changed to 12 and Z is kept constant, find the value of X.
Mathematics Mcqs | Probability

In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?

In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?

A. 5/21
B. 5/14
C. 9/14
D. 16/21
Explanation:
Number of ways of (selecting at least two couples among five people selected) = (⁵C₂ * ⁶C₁)
As remaining person can be any one among three couples left.
Required probability = (⁵C₂ * ⁶C₁)/¹⁰C₅
= (10 * 6)/252 = 5/21

Read More In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?

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