Linda is k years old last year. Her brother is 3 years younger than her. What would their total age be in 7 years
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Anne is n years old now. 4 years ago, Anne was 2 times as old as Bernice. How old was Bernice 4 years ago?
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Amy is r years old. Her mother is 4 times as old as her. What is their total age in 6 years
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Geria is p years old now. In 10 years' time, her auntie will be thrice as old as her. How old is Geria's auntie now?
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Ann brought $z to the supermarket. She bought 2 watermelons at $2.50 each. How much money had she left? Give your answer in cents.
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Hillary bought 12 buns and 15 doughnuts altogether. One bun is y ¢ and one doughnut is $2. She gave the cashier $50. Express her change in terms of y in cents.
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Lindy paid $p for a plate which cost p cents. How much change did she receive? Give your answers in
  1. cents,
  2. dollars.
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Ben had $20f. It cost $2f to play a game in the arcade and he played 7 games. If he paid 80 cents for the entrance fee, how much money did he have left in dollars?
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Some is leaking from a crack of a bottle. After z minutes, the volume, V, of the oil left in the bottle is given by V = 40(100 - 5z) cm3. How much oil will be left in the tank after 10 minutes? Give your answer in litres.
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A pencil costs $x. A novel costs $15 more than the pen. A file costs $5 less than the novel. Find the total cost of the 3 items.
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