Subject :IMO Class : Class 7
If 
of a number is 45, what is 
of the same number?
explain
of a number is 45, what is of the same number?
(A) 5
(B) 25
(C) 30
(D) 81
explain
Ans 1:
Class : Class 7
Let number be Z.
Then 9Z/5=45
so Z=45 X 5 / 9
Z= 25
Now 25 X 1/5 =5
So ans is A