Question

A boat covers a distance of 21 km in 7 hours .What distance will it covers in 21 days?​

Answer 1

Answer:

1512 km

Step-by-step explanation:

(21×24)/7 ×21=1512

Answer 2

Answer is 63 km

This is the case of direct variation

Days. Distance

7. 21km

21. X km

Hence, if days will increase then distance covers also increase

So, 7x =21km×21days

X=21km×21days

=. __________

7days

=21km×3

=63km ans

Note=by cancelling days up and down

Dividing 21 by 7 we get 3