Problem 5.1 Race
In a relay race, the first runner of the team runs one-half of the
distance plus one-half of a kilometre; and the second runner reached the
finish line after running one-third of the remaining distance plus
one-third of a kilometre. How long was the race?
Problem 5.2 Twice the Sum
Twice the sum of a number and 5 is equal to 11 more than one half of
the number . What is the number?
Problem 5.3 Area of the Lawn
Jim mowed 0.3 of the lawn. He still had 630 m2 of the
lawn to mow. What is the total area of the lawn?
Problem 5.4 How Long?
Pump A can empty a swimming pool in 3 hours. Pump B
can empty the pool in 5 hours. How long does it take both pumps
pumping together to empty the pool?
Problem 5.5 How Much?
A can of paint weighs 16 kg. The same can filled with water
weighs 8 kg. If the paint is three times as heavy as the water, how
much does the empty can weigh?
Problem 5.6 Extra Toast
A person can buy two pieces of toast and a cup of tea for $2.40 or one
piece of toast and a cup of tea for $1.80. How much extra would the
person pay for the second piece of toast?
Problem 5.7 Sum and Difference
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