Asked by Bright

In the fourth year of a school. There were 156 students who took both mathematics and science. They all passed at least one subject and 75 passed both subjects. If twice as many passed science as passed Mathematics, find how many passed in mathematics only.

Answers

Answered by oobleck
If x passed math, then we have
x + 2x - 75 = 156
Find x, and then x-75 passed math only
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