Question

Answer for no 12 and no 11

Answer 1

45% is passing marks
now passing marks are 255+15=270
now 45%is. 270
so 100% is what
(270*100)/45=600
so total marks are 600

Answer 2

12.)Let the maximum marks be x
Then,pass marks=255+15=270
ATQ,
(270/x)×100=45
27000/x=45⇒27000=45 x⇒x=27000/45=600(Ans.)

11.)Let the total no. of teachers be x
No.of female teachers=(32/100)×x=8 x/25
No.of male teachers=85
Total no.of teachers=(8 x/25)+85
x=(8 x+2125)/25⇒25 x=8 x+2125
25 x-8 x-2125=0⇒17 x-2125=0
17 x=2125⇒x=2125/17=125(Ans.)