Explanation:
Let stickers collected by Maya is x and Amal is y such that,
x+y = 952 ..(1)
Maya collected three times as amal.
x = 3y ...(2)
Put equation (2) in (1).
3y+y = 952
4y = 352
y = 88
So,
x = 3(88)
= 264
Hence, Maya collected 264 stickers and Amal collected 88 stickers.