The grandfather years=grandson's month The grandson's days=father's week Total age of father,grandfather and grandson is 140 years

1
by singhsumita40

• qais
• Content Quality
2016-01-09T15:05:25+05:30

This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
For better calculation, considering all months is of 30 days ,
1 year = 360 days

Let Grandfather age be D days
Father age be B days
Grandson age be P days
A/q,
D + B +P = 140 ×360 days
now, Grandfather age in year = Grandson age in months
so, D = 12 P
now, Father age in week = Grandson age in days
so, B = 7 P
now , from first equation,
D + B +P = 140 ×360 days
⇒12P + 7P +P = 140× 360
⇒20 P = 140 ×360
⇒P = 2520 days
= 2520/360 = 7 years
so, B = 7×P = 7×7 = 49 years
and , D = 12 P = 12× 7 = 84 years
so, Grandson = 7 years
Father = 49 years
Grandfather = 84 years