Solve the following word problems:
(1) A car travels 561.6 km in 9 hours. How many kilometres does it travel in an hour?
Solution: In 9 hours the car travels = 561.6 km.
Therefore, in 1 hour the car travels 561.6 / 9 = 62.4 km.
(2) The weight of 23 bags of cement is 1167.25 kg. Find the weight of each bag.
Solution: The weight of 23 bags of cement is 1167.25 kg.
Therefore, The weigh of each bag 1167.25 / 23 = 50.75 kg.
(3) The product of two decimals is 21.952. If one of them is 8.96, find the other.
(hints: product means multiplication)
Solution: The product of two decimals is 21.952.
One of them is 8.96
The other is 21.952 / 8.96 = 2.45
(4) The cost of 35.5 kg of tomatoes is Rs. 342.22. Find the cost of 1 kg of tomatoes.
Solution: The cost of 35.5 kg of tomatoes is Rs. 342.22
The cost of 1 kg of tomatoes = 342.22 / 35.5 = 9.64
(5) How many pieces of plywood each 0.35 cm thick are required to make a pile 1.89 m high.
Solution: 1.89 m = 189 cm
Pieces of plywood is necessary 189 / 0.35 = 540 pieces.
(6) A bowler took 15 wickets for 321 runs. What is his average score per wicket?
Solution: Bowler took 15 wickets for 321 runs.
His average score per wicket = 321 / 15 = 21.4 runs.
(7) Satish ran a 100 m race. Each of his steps 1.25 m long. In how many steps did Satish complete the race?
Solution: Total Path = 100 m
Each step measure = 1.25 m
Therefore, Satish complete the race in = 100 / 1.25 = 80 steps.