Question

A quarter of the total number of a group of people is adults. There are 60 more children than the adult. How many people were adults ?

Answer 1

Let the total number of people be X.

A quarter of the total number are adults.

i.e. (x/4)=A

Let the number of children be C.

i.e. C=A+60

Now, X=A+C

=(X/4)+(X/4)+60

=(X/2)+60

i.e. X/2=60

X=120

A=X/4=120/4=30