The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 129. Find the average of the remaining two numbers?
185
The sum of the first three numbers = (2 × 78) + 129 = 156 + 129 = 285.
The sum of the remaining two numbers = 655 - 285 = 370.
The average of the remaining two numbers = 370 ÷ 2 = 185.
Important Questions from Average
The average height of 20 students of class 8 is 152 cm and the average height of 15 students of class 9 is 168 cm. What is the average height (to the nearest cm) of the students of both classes?
The average of 4, 6, 8, 12 and x is 7 and the average of x, 9, 13, 15 and y is 9. What is the value of 2x - 3y?
The average weight of 20 girls in a school was 52 kg. Two new students of weight 54 kg and 50 kg were admitted. The ratio of this new average to the old one is:
If the average of two numbers is 13 and the square root of their product is 12, then the difference between the numbers is:
If the average of 5 consecutive odd integers in increasing order is 11 , then the average of the last 3 of them is:
