In a class of 52 students the number of boys is 6/7 of the number of girls how many are boys
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there are 19 boys
sorry if i am wrong because i don"t know it correctly
sorry if i am wrong because i don"t know it correctly
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assume total number of boys a
total number of girls b
total number of students 52
a + b = 52. ....... equation 1
number of boys is 6/7 of girls
so
a= (6/7) x b
a = 6b / 7
sub a in equation 1
(6b/7) + b = 52
take LCM
(6b+7b)/7 = 52
13b/7 = 52
13b = 52 x 7
13b = 364
b = (364 / 13)
b = 28
sub in equation 1
a + 28 = 52
a= 52 - 28
a = 24
tatal number of boys 24
total number of girls b
total number of students 52
a + b = 52. ....... equation 1
number of boys is 6/7 of girls
so
a= (6/7) x b
a = 6b / 7
sub a in equation 1
(6b/7) + b = 52
take LCM
(6b+7b)/7 = 52
13b/7 = 52
13b = 52 x 7
13b = 364
b = (364 / 13)
b = 28
sub in equation 1
a + 28 = 52
a= 52 - 28
a = 24
tatal number of boys 24
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