Which of the following quantities X and y vary directly with each other?
(a) The number of articles (x) and their cost(y)
(b) The age in years(x) and the weight in kilograms(y)
(c) The speed in km per hour(x) and the time in hours(y)for a fixed distance
(d) The number of men(x) and the number of days taken(y) to finish a piece of work.
If Arun takes 25 steps to cover a distance of 20 metres, what distance will he
cover in 315 steps?
Answer plz
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Step-by-step explanation:
(c) The speed in km per hour(x) and the time in hours(y)for a fixed distance
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