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Standard VI

Mathematics

Division of Decimal by Whole Number

A car travels...

Question

A car travels 40 km in an hour. How much time will it take to reach city B from city A if the distance between the 2 cities is 800 km ?

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Solution

Distance covered in 1 hour = 40 km
Total distance to be covered = 800 km
Distance covered in 1 hour $\times$ Time required
= Total distance to be covered
Time required
= Total distance to be covered $\div$ Distance covered in 1 hour
= 800 $\div$ 40 = 20 hours

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A car travels 40 km in an hour. How much time will it take to reach city B from city A if the distance between the 2 cities is 800 km ?

Distance covered in 1 hour = 40 km Total distance to be covered = 800 km Distance covered in 1 hour × Time required = Total distance to be covered Time required = Total distance to be covered ÷ Distance covered in 1 hour = 800 ÷ 40 = 20 hours

Distance covered in 1 hour = 40 km
Total distance to be covered = 800 km
Distance covered in 1 hour $\times$ Time required
= Total distance to be covered
Time required
= Total distance to be covered $\div$ Distance covered in 1 hour
= 800 $\div$ 40 = 20 hours