A boy runs at a speed of p p p kmph to cover a distance of 1 km. However, due to a slippery surface, his speed decreases by q q q kmph ( p > q p &g...

Question

A boy runs at a speed of

pp
kmph to cover a distance of 1 km. However, due to a slippery surface, his speed decreases by
qq
kmph (
p>qp > q
). If he takes
rr
hours to cover the distance, find the relationship between
pp
,
qq
, and
rr
.

Options

A.

1r\frac{1}{r} = p - q

B.

r = p – q

C.

r = p + q

D.

1r\frac{1}{r} = p + q

m.b.a., 2006speed formulatime calculationdistance problems

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