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RS Aggarwal Solutions Class 8 Mathematics Solutions for Direct and Inverse Proportions Exercise 12A in Chapter 12 - Direct and Inverse Proportions
Question 1 Direct and Inverse Proportions Exercise 12A
A loaded truck covers 16 km in 25 minutes. At the same speed, how far can it
travel in 5 hours?
Answer:
At the same speed, if the distance is more the time taken will also be more
therefore it’s directly proportional.
Let us consider the distance covered as x km, as the unit of time is different so we write it
as 25min = 25/60hr
(16/(25/60)) = x/5
25/60 × x = 16 × 5
x = (80 × 60)/25 = 192km
∴ The truck can travel 192km in 5hrs.
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