3000 students appeared in a contest.of them 40% were girls and the remaining boys.If 10% boys and 12% girls won the contest with prizes,find the percentage of students who won prizes.
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17
3000 students appeared in a contest.of them 40% were girls and the remaining boys
so 60% are boys
number of boys= (60/100)*3000=1800
number of girls= (40/100)*3000=1200
10% boys and 12% girls won the contest with prizes,
number of boys who won the contest=(10/100)*1800=180
number of girls who won the contest=(12 /100)*1200=144
total number of students who won =180+144=324 students
percentage of students who won prizes.=(324/3000)*100=10.8%
10.8% of students won the prizes
pls mark as brainliest
so 60% are boys
number of boys= (60/100)*3000=1800
number of girls= (40/100)*3000=1200
10% boys and 12% girls won the contest with prizes,
number of boys who won the contest=(10/100)*1800=180
number of girls who won the contest=(12 /100)*1200=144
total number of students who won =180+144=324 students
percentage of students who won prizes.=(324/3000)*100=10.8%
10.8% of students won the prizes
pls mark as brainliest
Answered by
4
no. of girls = 3000× 40÷100 = 1200
no. of boys = 3000 - 1200 = 1800
no. of girls won prizes = 1200 × 12÷100= 144
no. of boys won prizes = 1800× 10÷ 100= 180
total no. of students who won prizes
= 144 + 180 = 324
no. of boys = 3000 - 1200 = 1800
no. of girls won prizes = 1200 × 12÷100= 144
no. of boys won prizes = 1800× 10÷ 100= 180
total no. of students who won prizes
= 144 + 180 = 324
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