Question

A student was asked to multiply a number by 3/2 but he divided that number by 3/2 . His result was 10 less than the correct answer. The answer was :

Answer 1

Answer:

The correct answer is 18.

Step-by-step explanation:

Let the number which was asked to be multiplied by 3/2 be =x

According to the question:

3x/2-10 = 2x/3

3x-20/2 = 2x/3

3x-20 = 4x/3

9x-60 = 4x

9x-4x = 60

5x = 60

x = 12

Putting the value of x in 3x/2

3*12/2

36/2

18

Hence 18 is the correct answer

Answer 2

Answer:

the answer is 12.

let the number be x.

so, the condition is that student have to multiply x by 3/2 means x*3/2.but student have do divide instead of multiplication that is 10 less than required no.

So, lets solve it

3x/2-x/(3/2)=10

3x/2-2x/3=10

5x/6=10

5x=60

therfore, x=12.