59-x=7(11-x)=59 yrs
59-x=77-7x
-x+7x-77-59
6x=18
x=18^6=3
so 3 years ago uncle's age is 7 times of Roy's age.
Answer:
a=10% b= 25/100 c=1/2
Step-by-step explanation:
calculate
Is it a multiple choise?