Question

Six boys and six girls went to a hotel to have lunch. Each boy paid an equal amount and it is ₹20 more than what each girl paid.The bill amount was ₹1380 . Half of the girls as well as half of the boys left after paying their share of the bill.Find the average amount (in ₹) paid by the others.​

Answer 1

Step-by-step explanation:

The the total money spent by them is Rs 117

Solution:

Given that:

Nine persons went to a hotel for taking their meals

Eight of them spent rupees 12 each over there meals

Total amount spent by 8 of them is:

So total amount spent by 8 of them is Rs 96

Let "x" be the amount spent by all of them

The ninth spend rupees 8 more than the average expenditure of all the nine

amount spent by ninth person = 8 + x/9

According to given question,

amount spent by all of them = total amount spent by 8 of them + amount spent by ninth person

Thus the the total money spent by them is Rs 117