2. John’s father is 5 times older than John and John is twice as old as his sister Alice. In two years time, the sum of their ages will be 58. How old is John now?
3. Joan is 3 times as old as her sister. In 3 yeas , shee will be two years more than twice the age her sister will be then. What are their ages?
4. Kevin is 4 years older than Margaret.
Next year Kevin will be 2 times as old as Margaret.
How old is Kevin?
5. Peter can mow the lawn in 40 minutes and John can mow the lawn in 60 minutes. How long will it take for them to mow the lawn together?
6. Jane, Paul and Peter can finish painting the fence in 2 hours. If Jane does the job alone she can finish it in 5 hours. If Paul does the job alone he can finish it in 6 hours. How long will it take for Peter to finish the job alone?
7. A tank can be filled by pipe A in 3 hours and by pipe B in 5 hours. When the tank is full, it can be drained by pipe C in 4 hours. if the tank is initially empty and all three pipes are open, how many hours will it take to fill up the tank?
8.A sum of P 1.85 is composed of 5,10,25 centavo coins. If there are twice as many as 5 centavo coins are 10 centavo coins, and f there are two more 25 centavo coins half the no. of 5 centavo coins, how many coins of each kind are there?
9. Jane bought a pencil and received change for $3 in 20 coins, all nickels and quarters. How many of each kind are given?
10. Your uncle walks in, jingling the coins in his pocket. He grins at you and tells you that you can have all the coins if you can figure out how many of each kind of coin he is carrying. You're not too interested until he tells you that he's been collecting those gold-tone one-dollar coins. The twenty-six coins in his pocket are all dollars and quarters, and they add up to seventeen dollars in value. How