a grandfather is 8 times as old as his grandson. also, he is 63 years older than him. find their present age.
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Answers
Age of grandson = 9 yearsAge of grandfather = 72 years
Given :
the grandfather is 8 times as old as his grandson.age of grandfather is 63 years more than that of grandson.
To find :
their present age.
Solution :
➝ Let's find their present age.
Let the age of grandson be x and the age of grandfather be 8x. And the age of grandfather is 63 years more than age of grandson, hence :
→ 8x = x + 63
→ 8x - x = 63
→ 7x = 63
→ x = 63/7
→ x = 9 years
Present age of grandfather = 8x
= 8 × 9 = 72 years
Present age of grandson = x
= 9 years
Therefore, the ages of grandfather and grandson are 63 years and 9 years respectively.
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Step-by-step explanation:Age of grandson = 9 yearsAge of grandfather = 72 years
Given :
the grandfather is 8 times as old as his grandson. age of the grandfather is 63 years more than that of the grandson.
To find :
their present age.
Solution :
➝ Let's find their present age.
Let the age of grandson be x and the age of grandfather be 8x. And the age of grandfather is 63 years more than age of grandson, hence :
→ 8x = x + 63
→ 8x - x = 63
→ 7x = 63
→ x = 63/7
→ x = 9 years
Present age of grandfather = 8x
= 8 × 9 = 72 years
Present age of grandson = x
= 9 years
Therefore, the ages of grandfather and grandson are 63 years and 9 years respectively.