Question

if a car travels 90km/h for 15 minutes it will travel a. bc x 10^d what are the values of a, b, c and d

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Answer 1

• Here, Speed = 90 Km/h
• Time = 15 minutes.
• Therefore, distance = speed × time
• = 90 Km/h × 15 min
• $=( 90 \times \frac{1}{3600} \times 15 \times 60 \times 1000)m \\ = (90 \times \frac{1}{3600} \times 900 \times 1000)m \\ = (90 \times \frac{1}{3600} \times 900 \times {10}^{3} )m$
• Here, we have multiplied 1/3600 because we have to convert hour to seconds. We have also multiplied 60 because we have to convert minutes to seconds. Also, we have multiplied 1000 as to convert kilometres to metres.
• So, the values of

$a = 90 \\ b = \frac{1}{3600} \\ c = 900 \\ d = 3$ Answers:

• a = 90
• b = 1/3600
• c = 900
• d = 3

Hope it helps.

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