New RBI Grade B 2025 Notification will come Soon! Enroll Here

Question

The mean deviation and coefficient of mean deviation of

5 observation are 1.2 and 0.4. If the sum of the first four terms is 10, then the fifth term is equal to:

A 4.5

B 5

C 4

D 5.5

Practice Next

More Welfare Economics Questions

2040, 600, 240, 150, ?, 121.875
In an examination, the average marks obtained by the students is 40. After correcting the quantitative mistakes, the average of 50 students is reduced t...
The average of forty numbers is 45 while the average of first twenty-two numbers and last twenty-two numbers is 50 and 60, respectively. Find the twenty-se...
In a company, the average number of employees named Amit and Chinky is 25. The number of Chinky's name employees is 50% higher than the number of Amit's...
There are two sections A and B of a class, consisting of 38 and 42 students, respectively. If the average weight of the students of section A is 55 kg a...
Mishti bought 20 kg apples for Rs 60 per kg, b kg apples for Rs 70 per kg and (b + 6) kg apples for Rs 50 per kg. She mixed all type of apples together ...
The average marks scored by 45 boys and 55 girls are 78 and 84 respectively. Find the average marks scored by all the students together. (Answer should ...
Ashish bought 25 notebooks for Rs.1230 from shop A and 12 notebooks for Rs.805 from shop B. What is the average price he paid per book?
A kiosk has different brands of chips. 70% of the stores' sales are from selling potato chips. 30% of the sales are from 3 other chips and wafers. Every...

-->