Question

There were 28 children in the P.E class on Tuesday. 50% of the class wore tracksuit bottoms for P.E., 0.25 had shorts, and the rest forgot their kit. How many children forgot their kit?

Answer 1

To determine how many children forgot their P.E. kit, we subtract the percentage of children who wore tracksuit bottoms and shorts from 100% and then calculate the number based on the total of 28 children. Seven children forgot their kit.

Step-by-step explanation:

The question asks to calculate the number of children who forgot their kit in a P.E. class consisting of 28 children. We know that 50% of them wore tracksuit bottoms and another 25% wore shorts. To find the number of children who forgot their kit, we subtract the percentages of children who wore tracksuit bottoms and shorts from the whole class, which is 100%, and then calculate the corresponding number of children based on the 28 children in total.

Fifty percent of 28 is 14 (because 0.50 × 28 = 14), and 25% of 28 is 7 (because 0.25 × 28 = 7). Adding these two gives us the total number of children who were properly dressed for P.E., which is 14 + 7 = 21. To find out how many children forgot their kit, we subtract this number from the total number of children in the class: 28 - 21 = 7 children.