Question

10. (1) IF 16 % of a number is 25, find the numb
(17) IF 13.25% of a number is 159, find the number​

Answer 1

Answer:

ANSWER

(i) Consider the number as x

13.25 % of x = 159$$

It can be written as

13.25/100 of x=159

By further calculation

x=(159×100)/13.25

Multiply and divide by 100

x=(159×100×100)/1325

So we get

x=(159×4×100)/53

x=3×4×100

x=1200

Therefore, the number is 1200.

Answer 2

Answer:

Let the no in both the questions be x.

1) 16% of x is 25.

   16/100*x=25

   16x=25*100

   16x=2500

   x=2500/16

   x=156.25

2) 13.25% of x is 159.

     13.25/100*x=159

   13.25x=159*100

       x=15900/13.25

     x=1200