15 liters of water is poured from container A to Container B and 10 liters of water is poured from container A to container C. If C had 20 liters of water less than A, how many more liters of water does C have than A?

Question

A. 10L C. 20L
B. 15L D. 25L

What should i do? I don't know how to solve this. Any help would be appreciated. TIA.

Answer 1

original amount in A ---- x
original amount in C ---- x-20

after the pouring:
A has x-15-10
B doesn't matter
C has x-20 + 10 = x - 10

difference between C and A
= x-10 - (x-20)
= x-10 -x + 20
= 10