Question

in a bag of red and green sweets,the ratio of red sweets to green sweets is 3:4. if the bag contains 24 green sweets how many red sweets are there

Answer 1

set this up as a proportion 3:4 to x:24 and then you cross multiply getting:

4x = 72

Now divide by 4 and you get:

x = 18

so there are 18 red sweets.