Math, asked by Nandini2885, 1 year ago

answer.................

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Answered by siddhartharao77

7

Answer:

16 km/hr

Step-by-step explanation:

Let her average speed be 'x'.

∴ Ratio of speeds = Inverse ratio of time.

⇒ 12:x :: 15:20

⇒ x * 15 = 12 * 20

⇒ 15x = 240

⇒ x = 16.

Therefore, Her average speed is 16 km/hr.

Hope it helps!

siddhartharao77: :-)

Nandini2885: thanks

siddhartharao77: Welcome!

Answered by sprao534

3

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