there are 48 students in a class .3/4 of the boys and 2/7 of the girls travel by school bus .the total number of the boys and girls who travel by bus is 23 .a) how many girls are there in class ? b) how many boys travel by bus
rreed8249:
is it total girls=28...and the total boys travelling by bus =15
Answers
Answered by
6
There are 20 girls and 10 girls travel by bus
Answered by
9
☜☆☞hey friend ☜☆☞
here is your answer ☞
________
Given: Number of students in class = 48
Let the number of boys in class = x
Then number of girls in class = (48 - x)
According to the question
3x/4 + 2(48 - x)/7 = 23
⇒ 3x/4 + (96 - 2x)/7= 23
⇒ 21x + 384 -8x = 23×28
⇒ 13x = 644-384 = 260
⇒ x = 20
Hence,
number of boys in class = 20____answer
and
number of girls coming to school by bus
= 2(48 - 20)/7 = 8. ____answer
hope it will help you
Devil_king ▄︻̷̿┻̿═━一
here is your answer ☞
________
Given: Number of students in class = 48
Let the number of boys in class = x
Then number of girls in class = (48 - x)
According to the question
3x/4 + 2(48 - x)/7 = 23
⇒ 3x/4 + (96 - 2x)/7= 23
⇒ 21x + 384 -8x = 23×28
⇒ 13x = 644-384 = 260
⇒ x = 20
Hence,
number of boys in class = 20____answer
and
number of girls coming to school by bus
= 2(48 - 20)/7 = 8. ____answer
hope it will help you
Devil_king ▄︻̷̿┻̿═━一
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