Question

Nine persons went to a hotel to take their dinner. Eight of them 'spent 60 each for
the nine. How much money was spent by all of them?
the dinner and the ninth person spent 40 more than the averages expenditure of all
11 the​

Answer 1

Answer:

Rs. 117

Step-by-step explanation:

Given that eight members spent Rs. 12 each.

Let the average expenditure of all the nine be x

ˉ

Given that ninth member spent Rs. 8 more than the x

Therefore, the amount spent by the ninth member is x+8

Hence, x =

$\frac{(12 \times 8) + x + 8}{9}$

⟹9 x

ˉ

=96+ x +8

⟹8 x=104

⟹ x =13

Total money spent by them is (12×8)+13+8=117