Question

A bag contains green marbles and blue marbles, 26 in total. The number of green marbles is 1 more than 4 times the number of blue marbles. How many green marbles are there?

Answer 1

21 green marbles and 5 blue marbles

Explanation:

green: g and blue: b

b+g=26

g=4b+1

b+(4b+1)=26

5b+1=26

5b=25

b=5.

g=26-b, g=26-5, g=21.