Question

if Ranga's present age is z year's
a. what was his age 7 years ago?
b. what will be his age in 4 years from now?
c. and Ranga's grandmother is 4 times his age, what is his grandmother's age?
d. and Ranga's sister. nitu, is 3 years younger than 2 times his age, what is nitu's age? ​

Answer 1

Step-by-step explanation:

too long question lol.......

Answer 2

Answer:

a . z -7

b . z+4

c age of grandmother is 4xz

d .nitu age 3+2z