in a row of 21 boys when akash has shifted four places to the right, he becomes 12th from the left end. what was the akash earlier position from the right end.

15 hours ago 2

Let's analyze the problem step-by-step.

Given:

There are 21 boys in a row.
Akash shifts 4 places to the right.
After shifting, Akash becomes 12th from the left end.

Find:

Akash's original position from the right end.

Solution:

Let Akash's original position from the left be xxx.
After shifting 4 places to the right, his new position from the left is x+4x+4x+4.
According to the problem, after shifting 4 places to the right, Akash is 12th from the left end. So,

x+4=12x+4=12x+4=12

x=12−4=8x=12-4=8x=12−4=8

So, Akash's original position from the left was 8th.

Now, we want to find Akash's original position from the right end.

Since there are 21 boys,

Position from right=Total boys−Position from left+1\text{Position from right}=\text{Total boys}-\text{Position from left}+1Position from right=Total boys−Position from left+1

=21−8+1=14=21-8+1=14=21−8+1=14