Question

At a middle school, 36% of all seventh graders have taken piano lessons. There are 350 students in the seventh grade. How many of them have taken swimming lessons?

A) 0.
B) 126.
C) 74.
D) 350.

Answer 1

To find out how many seventh graders have taken swimming lessons, subtract the percentage of seventh graders who have taken piano lessons from the total number of seventh graders.

Step-by-step explanation:

To find out how many seventh graders have taken swimming lessons, we need to subtract the percentage of seventh graders who have taken piano lessons (36%) from the total number of seventh graders (350).

First, we calculate the number of seventh graders who have taken piano lessons by multiplying the percentage (36%) by the total number of seventh graders (350): 36% x 350 = 0.36 x 350 = 126.

Then, we subtract the number of seventh graders who have taken piano lessons (126) from the total number of seventh graders (350): 350 - 126 = 224.

Therefore, the correct answer is B) 126 of the seventh graders have taken swimming lessons.