Question

आपके लिये चुनौतीपूर्ण सवाल २४ घंटे में उत्तर दें। Total Marks 100 एक दादा एक बाप एक पोता तीनो की कुल उम्र 140 Years है। पोता जितना महीना का दादा उतना साल का पोता जितना दिन का बाप उतना सप्ताह का तो बताओ कौन कितने कितने साल का है ? Best Of Luck

Answer 1

age of grandfather = x years
age of son = x months = y days
age of father = y weeks.
x months = x/12 years.
y days = x months = x/12 years.
y weeks = 7*y days = 7*x months = 7*x/12 years.
x years + y weeks + x months or y days = 140 years.
x years + 7*x/12 years + x/12 years = 140 years.
12*x/12 years + 7*x/12 years + x/12 years = 140 years.
12x+7x+x years/12 = 140 years.
20x/12 = 140
x = 140*12/20 = 84
So, age of grandfather = 84 years.
age of son = 84 months =7 years.
age of father = 140-7-84 = 49
age of father = 49.
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