Percentage
MCQs Math


Question:     160 is what percent of 300? Or, What percent of 300 is equal to 160?


Correct Answer  53.33%

Solution And Explanation

Solution

Given number = 300

To find, 160 is what percent of 300?

This question can be written as also

What percent of 300 is equal to 160?

⇒ ?% of 300 = 160

Let ? = m

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

∴ m% of 300 = 160

⇒ m% × 300 = 160

m/100 × 300 = 160

300 m/100 = 160

After cross multiplication, we get

300 m = 160 × 100

After transposing 300 to RHS, we get

m = 160 × 100/300

⇒ m = 16000/300

⇒ m = 53.33%

Thus, 53.33% of 300 = 160

Thus, Answer = 53.33%

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 300 = 160

Here, we have ? = m

a = 300

And, b = 160

Thus, using formula

⇒ m = 160 × 100/300

= 160 × 100/300

= 16000/300 = 53.33%

Thus, 53.33% of 300 = 160

Thus, 53.33% Answer


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