Mrs. Limbu bought 180 kg of oranges in Dhankuta. 15 kg of oranges were rotten and not fit for selling. If she sold the remaining quantity of oranges in Dharan
at the rate of Rs 78 per kg and gained 10%, find the rate of cost price of oranges.

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.

can i see a photo of the question so i can you?