Question

The sum of shelly and her mother's age is 63 years. Four years back her mother's age was 4 times that of shelly's age at that time. What is the present age of shelly's mother?

Answer 1

Answer:

S+M=63

S=63-M

M-4=4(S-4)

M-4=4S-16

M=4S-16+4

M=4S-12

Substitute:

M=4(63-M)-12

M=252-4M-12

M=240-4M

M+4M=240

5M=240

M=240/5=48 Mother is 48 years old

S=63-48=15 Sudha is 15 years old....

i hope it will help u