A person has to cover a distance of 100

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Time, Speed and Distance

Question:

A person has to cover a distance of 100 km. If he increases his speed by 5 km/hr he reaches 1 hr early. Find his initial speed (in km/hr).

Options:

Correct Answer:

Explanation:

Let the initial speed = x km/hr

ATQ,

$\frac{100}{x}-\frac{100}{x+5}=1$

let x = 20 (by using option)

$\frac{100}{20}-\frac{100 }{25}=1$

5 – 4 = 1 (satisfied)

x = 20