Maths 1 (31 Jan 11)

Topic - Fractions

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Do these problem sums in your Maths 1 Exercise book.
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1. Colin gave 3/5 of his salary to his wife and spent 1/2 of the remainder. He saved the rest of his salary. What is the ratio of the amount of his salary given to his wife to the amount he saved?

2. 1/5 of A is the same as 2/3 of B. What is the ratio of B to A?

3. Natasha gave 1/5 of her stickers to Bryan, 1/2 of them to Katherine and 1/3 of her remaining stickers to Chloe. If Chloe received 12 stickers, how many stickers did Natasha have at first?

4. Two candles of equal length are lit at the same time. Candle A takes 10 hours to burn down while C andle B takes 5 hours. Candle A will be exactly three times as long as Candle B after how many hours?