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(40x+60y)/100=48
x+y=100

solve two simoultaneous eq

boys r 60, galx 100

not possible sorry wrong answer x+y needs to be 100

sorry i mean to say galx 40

typed wrong

oh ok but how did u get first two equations....xplain

sry only first equation

listen what will be mean of marks?
total marks divided by candidate

and what is x and what is y?

x is boys , y is number of galx

yeah but how 40 * x and 60 * y?

ok

why is 40 multiplied by x and 60 multiplied into y?

yeah so why do we multiply?

why do we multiply?

why do we multiply?

anwar help?

If you solve them, you will get \(n=70 \text{ boys, and } m=30 \text{ girls}\).

no anwar u are wrong

wasiq why will we multiply if 3 students are there then mmean is x1+x2+x3/3=90

Oh sorry, I solved them for \(46\), not \(48\). Wait a sec.

60 boys and 40 girls :)

yea anwser is rite but i dont understand why we multiply...

king u r dumb, sorry to say bt tru

sorry "the total of all the items"

oh ok thnx anwar and asnaseer
thnk u very much

no problem - always glad to help