Question

Waheeda's granddaughter in about as many days as her son in weeks and her granddaughter is as many months as she is in years her daughter her son and waheeda together are 120 years old. The age of waheeda in years is

Answer 1

Answer:

let m = his age

let s = son's age

let g = granddaughter's age

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write an equation for each statement

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My grand daughter is about as many days as my son is in weeks,

s = 7g

and my grand daughter is as many months as I am in years.

m = 12g

My grand daughter, my son and I together are 120 years.

g + s + m = 120

replace s with 7g; replace m with 12g

g + 7g + 12g = 120

20g = 120

g = 120/20

g = 6 yrs is granddaughter's age

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Can you tell me my age in years

m = 12 * 6

m = 72 is your age

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Check this; s = 7*6 = 42 is son's age

6 + 42 + 72 = 120