How to convert 1km/min to km/h​

Step-by-step explanation:

1 Km / min

In one minute the distance traveled = 1 km

In 60 minute the distance traveled = 1 * 60 = 60 km

1 Km /min = 60 km/h    

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.