The average weight of a watermelon is 4.61 kg. the average weight of a coconut is 2.22 kg less than a watermelon. the total weight of an equal number of coconuts and watermelons is 140 kg. how many coconuts are there?

Since the average weight of a coconut is 2.22 kg less than a watermelon, its average weight is

Let n be the number of coconuts and watermelons. The total weight of n coconuts and n watermelons is

If we want this total to be 140, we have

So, you have 20 coconuts and 20 watermelons.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction