Interview Questions on Percentage

x

Option: D

Explanation

To find whether the given number is how much percent of another given number

Divide the number given with the estimated number (the number for which how much percent is to be found)

i.e) (1/2) / (1/3) = (1/2) * (3/1) = (3/2)

Now convert it into percentage

i.e) ((3/2) * 100) %= (3 * 50) %= 150%

Ans = 150%

x

Option: A

Explanation

Consider the unknown value as x

i.e) x% of 25 = 2.125

Convert percentage into fractions

i.e) x% of 25 = 2.125

(x/100) * 25 = 2.125

x/4 = 2.125

x = 4 * 2.125 = 8.5

Ans = 8.5

x

Option: D

Explanation

convert percentage into fractions

convert fractions into decimals

i.e) (50/3) / 100 = (50/3) * (1/100) = 1/6 = 0.166

2/15 = 0.133

i.e) clearly by comparing the three values 0.166, 0.133 & 0.17. 0.17 is greatest.

Ans = 0.17

x

Option: A

Explanation

Required Difference = (7/2% of Rs.8400) - (10/3% of Rs.8400)

((7/2) - (10/3))% of Rs.8400

taking LCM

((21 - 20)/6)% of Rs.8400

1/6% of Rs.8400

Convert percentage into fractions

(1/6) * (1/100) * 8400 = 14

Ans = Rs.14

x

Option: A

Explanation

Consider the number of meters to be examined be x

inspector rejects 0.08% of the meters as defective

so 0.08% of x = 2

Convert percentage into fractions

(0.08/100) * (1/100) * x = 2

x = (2 * 100 * 100)/8 = 2500

Ans = 2500