Answer:
Step-by-step explanation:
A bag contains yellow and blue blocks in the ratio 1:3
Sum of Proportion = 1 + 3 = 4
There are 8 more blue blocks than yellow blocks.
b = y + 8
y = b - 8
(a) How many yellow blocks are there?
For yellow block
= 1/4 × x = ( b - 8)
(b) How many blue blocks are there?
3/4 × x = ( y + 8)