Question

A student finds the average of five two digits

numbers. If One number is reversed and the

average is taken again then the average

increase by 5.4. If all five digits are consecutive

multiple of four, then find the number which is

reversed?​

Answer 1

Answer:

The digit reversed maybe 16...but increment in average will be 9.4 ...

Explanation:

(12+61+20+24+32) /5= 29.8 .....eq(1)

& ( 12+16+20+24+32) /5 = 20.4 ....eq(2)

subtracting eq(2) from eq(1)

= 29.8 - 20.4 = 9.4

Answer 2

The number that is reversed is 16.

Step-by-step explanation:

We are given that:

Increase in average = 5.4

To find: Reversed number

The digit reversed maybe 16, but the increment in average will be 9.4

(12 + 61 + 20 + 24 + 32) /5= 29.8  --------(1)

( 12 + 16 + 20 + 24 + 32) /5 = 20.4    ---------(2)

Now subtracting equation (2) from equation (1)

= 29.8 - 20.4 = 9.4

Hence the number that is reversed is 16.