Question

Mary is organising a charity hot dog sale.
There are 18 bread rolls in each packet.
There are 15 hot dogs in each packet.
Mary buys exactly the same number of bread rolls as hot dogs.

What is the smallest number of each packet that Mary can buy?

Answer 1

Here we have to find LCM of 18 & 15

So LCM OF 18 & 15 IS 90

Smallest number of each packet that Mary can buy:-

Bread Rolls Packets - 90÷18=5

Bread Rolls Packets - 90÷18=5Hot Dog Packets - 90÷15=6