NCO- Cyber Olympiad (SOF) Class 7: Questions 1 of 422

Question MCQ▾

A certain distance is covered at a certain speed. If half of this distance is covered in double the time, the ratio of the two speeds is

Choices

Choice (4)Response

a.

4: 1

b.

2: 1

c.

1: 2

d.

1: 4

Edit

Answer

a.

Explanation

  • A certain distance is covered at a certain speed in time
  • Then
  • Now half of this distance is covered in triple in time, so distance and time t2 =
  • New speed .
  • Now, from (I) , s2 =
  • So,
  • So, the ratio is 4: 1.

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