A committee of seven women agree to subscribe a sum
of money among them. The first six are to pay Rs. 10
each and the seventh has to pay 6 more than the
average of the seven. Find the amount that has to be
paid by the seventh?
Answers
Given :- A committee of seven women agree to subscribe a sum of money among them. The first six are to pay Rs. 10 each and the seventh has to pay 6 more than the average of the seven. Find the amount that has to be
paid by the seventh ?
Solution :-
Let the 7th woman paid Rs.x .
so,
→ All 7 paid = 6 * 10 + x = Rs.(60 + x)
then,
→ Average paid by 7 = Total 7 paid / 7 = (60 + x)/7 .
A/q,
→ (60 + x)/7 + 6 = x
→ (60 + x + 42)/7 = x
→ 102 + x = 7x
→ 6x = 102
→ x = Rs.17 (Ans.)
Hence, the amount that has to be paid by the seventh is Rs.17 .
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