Solve the following Problem:
The average age of a committee of 8 members is 40 years. A member aged 55 years retired and his place was taken by another number aged 39 years. What will be the average age of the present committee?

Created: 1 month ago | Updated: 3 weeks ago

$S u m o f a g e = 8 \times 40 = 320 y e a r s$

$∴ D i f f e r e n c e i n a g e o f l a s t m e m b e r i s = 55 - 39 = 16 y e a r s .$

$∴ N e w s u m o f a g e = 320 - 16 = 304 y e a r s$

$∴ N e w a v e r a g e = \frac{304}{8} = 38 y e a r s$

1 month ago

0 0

স্বপ্নদর্শী

Verified

Related Questions