Asked by Anonymous

OUT OF 1200 PUPILS IN A SCHOOL 900 ARE BOYS AND THE REST ARE GIRLS. IF 20 % OF THE BOYS AND 30 % OF THE GIRLS WEAR SPECTACLES, FIND HOW MANY PUPILS IN ALL WEAR SPECTACLES AND WHAT PERCENT OF THE TOTAL NUMBER OF PUPILS WEAR SPECTACLES.
Answered by Adamissmart
22.5%
Answered by Ms. Dale
In 1,200 students only 330 students wear spectacles then among 100 students the number will be 27.5 that means 27.5% students wear spectacles.
Answered by Adamissmart
are you sure I just checked my again, but I got the same thing I might be doing something wrong.
Answered by Reiny
boys wearing glasses = .2(900) = 180
girls wearing glasses = .3(300) = 90
total wearing glasses = 270
percentage of total wearing glasses = 270/1200 = .225 or 22.5%

Answered by Adamissmart
yes I was right
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