If 20 men can dig a trench in 15 hours how many men can dig the same trench in 10 hours show working

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.

hello, it is c -4

hope i you have a good day

i’m kinda new to precal but your answer should be 21. hope i got it right.

step-by-step explanation: