Question

The product of a fraction and the sum of 16/5 and 31/10 is 9/10.Find the fraction

Answer 1

Let the fraction be 'x'.
According to the problem,
x[(16/5)+(31/10)]=(9/10)
⇒x[(32+31)/10]=(9/10)
⇒x(63/10)=(9/10)
⇒x=(9/10)/(63/10)
⇒x=1/7
Therefore, the fraction is 1/7.

Answer 2

let the fraction be x.
sum of 16/5+31/10
=(32+31)/10.
=63/10

ATQ
63x/10=9/10
630x=90
x=90/630
=1/7
therefore the fraction=1/7

hope it will help.............