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Mother's age is 6 times Amal's age and grandmother's age is twice mother's age.After 5 years the sum of their ages will be 120 years.Find their present.
Amal's age = x
Sp, according to the question,
Mother's age = 6x 
Grandmother's age = 12 x
Then
After 5 years sum of their ages  = 120
x + 5 + 6x + 5 + 12x + 5 = 120
19x = 105
x = 5.526
Age of amal = 5.526 years
Age of mother = 6 x 5.526 = 33.156 years
Age of grandmother = 12 x 5.526 = 66.312 years


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