Hi

Number of colour pencils in a pack

= 24

Number of crayons in each pack = 32

If we find full packs of both which has same number of pencils and crayons

We have to find L C M of 24 and 32

32 = 2 × 2 × 2 × 2 × 2

24 = 2 × 2 × 2 × 3

L C M (32,24) = 2 × 2 × 2 × 2 × 2 × 3 = 96

24 pencils = 1 pack

i) 96 pencils = 4 × 24 pencils = 4 packs

ii) 32 crayons = 1 pack

96 crayons = 3 × 32 crayons = 3 packs

If want pencils and crayons same in number we have to buy 4 packs of pencils and 3 packs of crayons.