there are 50 student in a class each boy in the class contribute rupees 40 and each girl contact rupees 50 towards Kerala food relief fund if total sum collected is rupees 2220 find the number of boys and number of girls in the class
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Step-by-step explanation: Let the no. of boys be x and no. of girls be 50-x.
Total money contributed by boys= x*40=40x
Total money contributed by girls=( 50-x)*50=2500-50x
According to the question,
40x+(2500-50x)=2220
⇒40x+2500-50x=2220
⇒40x+2500=2220+50x
⇒2500-2220=50x-40x
⇒280=10x
⇒280/10=x
∴x=28
No. of boys= 28
No. of girls=50-28=22
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