Question

Q 21 The speeds of three cars are in the ratio of 3 : 4:5. Find the ratio between the time taken by these cars to cover the same distance.

Answer 1

Answer:

Speed is always inversely proportional to time,

i.e., s ∝

t

1

∴ Ratio of times takes =

2

1

:

3

1

:

4

1

=

2

1

×12:

3

1

×12:

4

1

×12

=6:4:3