Question

The avarege age of 5 members of family is 21 years if the age of grand father is included the avarege gae increase by 9 years what is age of grand father ​

Answer 1

$\huge\mathbb{\underline{QUESTION:-}}$

The avarege age of 5 members of family is 21 years if the age of grand father is included the avarege gae increase by 9 years what is age of grand father ?

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$\huge\mathbb{\underline{SOLUTION:-}}$

★ Avg age of 5 Members is 21, so total age is 21×5=105

★ If the GF age included avg Age increased by 8 So,

• (21+ 8) ×(5+1)
• =29×6 =174

★ Now subtract the new Total age from old,

• 174-105=69

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$\huge\mathbb{\underline{ANSWER:-}}$

★ Age of the grandfather is 69

Answer 2

Answer:

Refer to the attachment