Question

If 100% of a number is 15, what is 50% of the number?
(1)7.5
(2)50
(3) 15
(4)50​

Answer 1

Answer:

7.5

Solution:

Let the number be X

So, here we have given that :

100% of a number is 15.

And we have to find it's 50%

We have taken variable X.

Solution:

100% of X= 15

100X/100=15

X=15x100/100

15=X

[ We already have given this! ]

So, the number is 15.

Now, what's 50%

50% of 15

50/ 100 X 15

5/ 10X15

1/2 X 15

=> 7.5

Answer 2

1) 7.5 is the right answer