Question

Aand B both have some pencils . if A gives 10 pencils to B then B will have twice as many as A. and if B gives 10 pencils to A then they will have the same number of pencils . How many pencils does each have?​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

A has 20 and B has 30 pencils

Step-by-step explanation:

let A has x pencils and B have y pencils.

Given that,

y+10=2x

2x-y=10 -- 1

Also given that,

x+10=y

x-y=-10 -- 2

By 1 and 2,

2x-y=10

x-y=-10

subtracting above equations,

x=20

x-y=-10

y=x+10=20+10=30

y=30

Thus A has 20 and B has 30 pencils.