Level 3
188 apples are kept in 3 boxes. The 1st box contains 20 more apples than the 2nd box. The 2nd box contains 3 times as many apples as the 3rd box. How many apples are there in the 3rd box?
Level 3
Penelope has a total of 95 markers. She has 21 more red markers than blue markers. She has twice as many black markers as red markers. How many red markers does she have?