RRB Group D 10-Oct-2018 Shift 2 Solved Paper

Question : 19 of 100

Marks: +1, -0

Four numbers when arranged in ascending order are

w, x, y

and

z

. The average of the smallest three numbers is 22 , whereas the average of the largest three numbers is

28 .

What is the range of the data?

Solution:

Numbers in ascending order

={w}, {x}, {y}, {z}

From the question,

w+x+y= 22 \×3=66

...(1)

x+y+z= 28 \×3=84

....(1)
Eq.

(2)-

Eq. (1)

{z}-{w}=84-66=18

Thus, range of the data is 18 .

Go to Question:

Prev Question

Next Question