Question

In a row of students, Deepak is seventh from the left and Madhu is twelfth from the right. If they interchange their positions, Deepak becomes twenty-second from the left. How many students are there in the row ?
(1) 19
(2) 31
(3) 33
(4) Canât be found

Answer 1

its 33

deepak is 7th from left

madhu is 12th from right

after interchanching deepak is 22nd from left which means madhu was at 22nd from left and 12th from right

there are 21 students leftside deepak (including madhu) and 11 on the right side so total students =21+11+1=33(one of deepak himself)

Answer 2

Heya!

Here's your answer -

Given :
Deepak = 7th from left
Madhu = 12th from right

If the position of Deepak and Madhu is interchanged,
The position of Deepak becomes
= 22nd from the left , 12th from the right.

Then total number of boys in row are
22 + 12 - 1 (deepak)
= 34 - 1 = 33 (opt 3)

Hope it helps!