Challenger App

No.1 PSC Learning App

1M+ Downloads
Find the average of 3/4, 5/8, 7/12, 15/16.

A11/32

B139/192

C21/64

D135/64

Answer:

B. 139/192

Read Explanation:

Sum of fractions = 3/4 + 5/8 + 7/12 + 15/16 = (36 + 30 + 28 + 45)/48 = 139/48 Average = Sum/Number of observations, Average = 139/(48 x 4) = 139/192


Related Questions:

A batsman has a definite average for 11 innings. That batsman scores 120 runs in his 12th innings due to which his average increased by 5 runs. Accordingly, what is the average of the batsman after 12 innings?
Average age of 29 students in a class is 14 when the age of the teacher is also included the average increased by 1 then what is the age of teacher ?
The arithmetic means of score of a group of students in a test was 52 The brightest 20% secure 80 as mean and the dullest 25% secure mean of 31 . The mean score of remaining 55%?
The average if two numbers A and B is 20, that of B and C is 19 and of C and A is 21. What is the value of A?
If the average of 35 numbers is 22, the average of the first 17 numbers is 19, and the average of the last 17 numbers is 20, then the 18th number is