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The average age of 4 members of a family...

The average age of 4 members of a family is 25 yr . If head of the family is included in this group , then average age increases by 20% . Find the out the age of the head

A

45yr

B

50yr

C

55yr

D

60yr

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The correct Answer is:
B
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ARIHANT SSC-AVERAGE -EXERCISE BASE LEVEL QUESTION
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