Elementary Questions
1 In a trip lasting 4 hours 20 minutes, a speedboat averaged 15 knots.
How many nautical miles was the trip? … note : 1 knot = 1 nautical mile per hour.
2 Number plates in Snowland consist of three digits followed by one letter.
What is the maximum number of number plates available?
3 A father is five times as old as his son.
How many years ago was the son 2 years old and the father 34?
4 Dianne pays two fifths of her money on a T shirt, 30% on a pair of shorts and had $15
left.
How much did she start with?
5 $1200 is divided equally among four sisters so that each gets $100 more than the sister
who is the next younger sister. How much does the youngest sister get?
6 Find the greatest number that divides 364, 414 and 539 with the same remainder in each case?
7 A father is 37 years old and his son is 5 years old.
In how many years time will the father be three times as old as his son?