Question

The ages of Isha and her mother are in the ratio 1:4. If after 20 years, the sum of their ages will be 100 years, the find their present ages.

Answer 1

Answer: let the ages of isha and her mother be 1x and 4x

1x+20+4x+20=100

5x=60

x=12

Therefore their present ages are 12 and 48 yrs

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Answer 2

Answer:

Ishas age =32

mothers age=68

Step-by-step explanation:

isha age 1x

mother age 4x

after 20 yrs

isha age 1x +20 mothers age 4x +20

1x+20+4x+20=1oo

5x +40=1oo

5x= 1oo-4o

x=6o\5

x=12