The relationship of 3 values are being compared by using the sum of first two to compare with the third.
2 of such comparisons are given with the known differences.
Such questions are common in Paper 2 of P6 Prelims.
Calculator usage is allowed.
Ahmad, Balu and Canaan, each have some marbles.
Ahmad's marbles make up 1/4 of their total number of their marbles.
Ahmad and Balu together, have 66 more marbles than Canaan.
Canaan and Ahmad together, have 24 more marbles than Balu.
How many marbles do they have altogether?

If the above question is easy, try to do the more challenging question below.
The question below will randomize with different numbers every hour.