Averages and Mixtures Test for Bank Exams

The average age of eight members of a family is 45 years. If one of them is excluded the average is decreases by 2 years. Find the age of excluded person

The average of 5 term is 50. If the first 4 terms are 45, 37, 80 and 43 what will be the last term?

If the average of seven numbers is 24 and the average of first six numbers is 21. If the last number is replaced by its twice, then what is new average?

The average salary of 10 men is Rs. 6000 and the average salary of some women is Rs. 5000. If average salary of men and women together is Rs. 5400, then find the number of women.

In alloy A ratio of Iron and Zinc is 3 ∶ 1 and in alloy B the ratio is 3 ∶ 7. They are mixed together in the ratio of 2 ∶ x to make another alloy C. In alloy C ratio of Iron and Zinc becomes 3 ∶ 4. What is the value of x?

Mixture of milk and water is 2 : 3 in 20 L of mixture, in order to make the ratio of milk and water 1 : 3, what quantity of water should be added to the mixture?

There were 20 boys in a class. The average age increase by 2 months, as a new boy comes in a place of a boy aged 18 years. The age of new boy is?

In a given series of 13 numbers, in which all numbers are in ascending order, the average of this series is 19. If the first number is 5 then what can be the maximum value of 13th number.

A shop is closed on Sunday. The average sales per day for remaining six days is Rs. 8240 and the average sales from Monday to Friday is 9000. The sales on Saturday is?

Three years ago, the average age of Raju's family of 4 members was 14 years. Raju's daughter having been born, the average age of Raju's family is the same today. What is the age of his daughter?