Question

30% of a number is 4710. Find its 3 1/4 %

Answer 1

If 30% of a number is 45, what is 4/5 of the number?

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If 30% of a number is 45, what is 4/5 of the number?

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Let the number be x

30% of x= 30x/100

As per statement 30% of a number is 45,

30x / 100 = 45

Cross multiplication

30x = 45 × 100

30x = 4500

x = 4500 / 30

x = 150

Thus the number is 150.

What is the 4/5 of the number

4/5 of 150

In mathematics ‘of’ is denoted for multiplication

4/5 × 150

4 × 150/5

4 × 30

= 120

Thus, 4/5 of the number is 120.

Answer 4/5 of the number is 120.