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Practice each question, then open the answer or worked solution.
Question: 10
Each bus takes about 15 minutes to refill, and there are two buses to be refilled. So they stop there for about ____________ minutes, which means they are late by about ________ minutes.
Answer: Time taken to refill 1 bus = 15 minutes
To refill 2 buses = 2 × 15
= 30 minutes
So, they stop there for about 30 minutes, which means they are late by about 30 minutes
Question: 11
Look in the picture and find the price of 1 litre of diesel
The total quantity of diesel filled = 100 litres
The cost of 100 litres of diesel = Rs 3500
Hence, 1 litre of diesel = 3500 ÷ 100 = 35
Therefore, the cost of 1 litre of diesel is Rs 35.
As the buses are being refilled, some children go to the toilet near the petrol pump.
Question: 12
How much time did Aman take to come out of the toilet?
Answer: Aman took 15 minutes to come out of the toilet