The average of 13 numbers is 60. Average of the first 7 of them is 57 and that of the last 7 is 61. Find the 8th number?

Related Mcqs:

The average temperature for Monday, Tuesday, Wednesday and Thursday was 48 degrees and for Tuesday, Wednesday, Thursday and Friday was 46 degrees. If the temperature on Monday was 42 degrees. Find the temperature on Friday?

A. 40 degrees B. 38 degrees C. 36 degrees D. 34 degrees...

The average of 35 numbers is 25. If each number is multiplied by 5, find the new average?

A. 125 B. 134 C. 170 D. 98...

The average height of 35 boys in a class was calculated as 180cm. It has later found that the height of one of the boys in the class was wrongly written as 166 cm whereas his actual height was 106 cm. Find the actual average height of the boys in the class (Round off your answer to two decimal places)?

A. 179.29 cm B. 178.29 cm C. 179.38 cm D. 178.39 cm...

Find the average of all the numbers between 6 and 34 which are divisible by 5.

A. 18 B. 20 C. 24 D. 30...

A pupil’s marks were wrongly entered as 83 instead of 63. Due to the average marks for the class got increased by half. The number of pupils in the class is___________?

A. 10 B. 20 C. 40 D. 73...