5 number whose average is 76, the first is 3/7 times the sum of other 4. the first number is: 

A party for 50 people was organized at their own expense. 48 of them paid Rs 950 each, while the other two paid Rs 1200 more than the group's average expenditure. The total expenditure incurred was.

The average of eight successive numbers is 6.5. The average of the smallest and the greatest numbers among them will be: 

Sunil has 40 coins of 10 paise and 25 paise each. If he has Rs 7.75, then how many 10 paise coins are there?

The average of nine consecutive odd numbers is 53. The least odd number is: 

The average age of 30 boys in a class is 15 years. One boy, aged 20 years, left the class, but two new boys came in his place whose age differs by 5 years. If the average age of all the boys now in the class becomes 15 years, the age of the younger newcomer is: 

Find the average of the following sets of numbers.

693, 456, 876, 532, 934, 691, 596, 398, 682