Question

26. There are two examination halls A and B. If 12 pupils are sent from A to B, the number of
pupils in each room becomes the same. If 11 pupils are sent from room B to room A, then the
number of pupils in A is double their number in B. Find the number of pupils in each room​

Answer 1

Answer:

A = 81, B = 57

Step-by-step explanation:

B+12=A-12

A=B+24...............(1)

2(B-11)=A+11

2B-22=A+11

A=2B-33.............(2)

(2)-(1),

0=B-57

B=57

A=81