The average age of $12$ members of a committee is $56$ years. Two members whose age were $60$ years and $52$ years respectively have died. The average age of other members is

54

years

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55

years

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56

years

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58

years

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Solution

The correct option is A $56$ years
Average age of $12$ members $56$
Sum of age of $12$ members = $56$ $\times$ $12 = 672$
New sum of age of members $= 672$ - $(60 + 52)$ = $560$
New average = $\frac{560}{10}$ $= 56 y e a r s$

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The average age of 12 members of a committee is 56 years. Two members whose age were 60 years and 52 years respectively have died. The average age of other members is

The correct option is A 56 yearsAverage age of 12 members 56Sum of age of 12 members = 56 × 12=672New sum of age of members =672 - (60+52) = 560New average = 56010 =56years

The average age of $12$ members of a committee is $56$ years. Two members whose age were $60$ years and $52$ years respectively have died. The average age of other members is

The correct option is A $56$ years
Average age of $12$ members $56$
Sum of age of $12$ members = $56$ $\times$ $12 = 672$
New sum of age of members $= 672$ - $(60 + 52)$ = $560$
New average = $\frac{560}{10}$ $= 56 y e a r s$