A bowl contains 675 sweets which are coloured either red, blue or green. The ratio of red sweets to blue sweets is 3:7 The ratio of blue sweets to green sweets is 4:5 Calculate the number of blue sweets that are in the bowl. 4:54 * 75 * 7=28:35 Optional working 16:28:35=79 79 * 3=237 79 * 4=316 316 * 28/79=112 Answer: blue sweets.
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