Wipro
Company
Numerical Ability
Averages
The average of marks obtained by 120 candidates in a certain examination is 35. If the average of passed candidates is 39 and that of the failed candidates is 15. The number of candidates who passed the examination is:
A. 150
B. 110
C. 100
D. 120
E. None of these
Read Solution (Total 3)
-
- total no.of candidates=120 and avg is 35
then total marks obtained by total candidates will be=120*35(hint:total/num=average)
let us consider passed candidates will be x
failed candidates will be120-x
so
120*35=x*39+(120-x)15
By solving the equation we will get x=100
So ans:100 - 9 years agoHelpfull: Yes(5) No(1)
- C)100
1 PART PASSED OUT OF 6 PARTS OF 6 PARTS
SO 100 - 10 years agoHelpfull: Yes(1) No(3)
- option:C
the total marks obtained by 120 candidates=4200
let the total marks by passed candidates=x
4200=39x+15(120-x)
4200=39x+1800-15x
4200=24x+1800
x=100 - 9 years agoHelpfull: Yes(1) No(0)
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