Percentage
MCQs Math


Question:     85 is what percent of 150? Or, What percent of 150 is equal to 85?


Correct Answer  56.67%

Solution And Explanation

Solution

Given number = 150

To find, 85 is what percent of 150?

This question can be written as also

What percent of 150 is equal to 85?

⇒ ?% of 150 = 85

Let ? = m

And the meaning of "of" in mathematics is "Multiplication".

∴ m% of 150 = 85

⇒ m% × 150 = 85

m/100 × 150 = 85

150 m/100 = 85

After cross multiplication, we get

150 m = 85 × 100

After transposing 150 to RHS, we get

m = 85 × 100/150

⇒ m = 8500/150

⇒ m = 56.67%

Thus, 56.67% of 150 = 85

Thus, Answer = 56.67%

Shortcut Method to find a number is what percent of other

If we have to find

? % of a = b

Here, let ? = m

Thus, above expression can be written as

m% of a = b

m/100 × a = b

m × a/100 = b

After cross multiplication, we get

m × a = b × 100

⇒ m = b × 100/a

Thus, using this formula, we can find a number (a) is what (m) percent of b

In the question, we have to find what percent of 150 = 85

Here, we have ? = m

a = 150

And, b = 85

Thus, using formula

⇒ m = 85 × 100/150

= 85 × 100/150

= 8500/150 = 56.67%

Thus, 56.67% of 150 = 85

Thus, 56.67% Answer


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