The quotient of a number and 10 multiplied by 3 is 100.
Translate and then solve.

333.333

Step-by-step explanation:

To do this let's call the mystery number x

x/10*3=100

rearrange to make this easier

3x/10=100

multiply both sides by 10

3x=1000

x=333.333

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.