Question

Nine people went to a hotal for a meal. Eight of them spent Rs 15 each on their meals and the ninth person spent Rs 8 more than the average expenditure of all the nine people. what was the that amount spent by them?​

Answer 1

Step-by-step explanation:

$total \: no. \: of \: people = 9$

$no. \: of \: people \: spending \: rs15 \: each = 8$

$total \: money\: eight \: people \: spent =15 \times 8$

$=120$

$average \: of \: eight \: people = \frac{120}{8} \\ = 15$

Given, that the ninth person spent 8 more than the average of 8 people.

$money \: spent \: by \: ninth \: person = 15 + 8 \\ = 23$

$total \: money \: spent \: by \: all \: of \: th \: nine \: people = 120 + 23$

$= 143$

Therefore, all the nine people spent Rs 143 altogether.

Answer 2

nice i feel happy that u came back. . by the way how is ur brother. a moderator deleted my question.-_-

for some reasons i thought of leaving but i stayed.

total no of people= 9

no of people spend rs 15 each= 8

total money 8 people spent= 15× 8 = 120

average= 120/ 8 = 15

money spent by 9th person = 23

total amount spent by all 9 people= 120+23= 143.

Step-by-step explanation:

hope it is helpful