TCS
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Numerical Ability
Averages
. In a telecom assembly factory,there are 250men and 150 women.The average productivity of all works is 12 units per day.The average productivity of men is 15 units per day..what is the average productivity of women per day?
a)6 b)9 c)7 d)8
Read Solution (Total 9)
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- Simple case of averaging:
250M + 150W = 400
Thus, 400*12 = 4800
Now, 250*15 = 3750
Now, 4800-3750 = 1050
Thus, for 150W avg prod is : 1050/150 = 7 - 12 years agoHelpfull: Yes(35) No(3)
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- 12 years agoHelpfull: Yes(5) No(3)
- 7
4800*(12*400)=3750(250*25)+150x
x=7 - 12 years agoHelpfull: Yes(4) No(1)
- hi.. simple: avg is 12 units per day... men avg is 15..
(15+X)/2=12.
answer is 9 - 12 years agoHelpfull: Yes(3) No(14)
- this ques solve using weighted mean..
250*15 + 150*y/250+150 =12
solve this easily you find
y=7 - 9 years agoHelpfull: Yes(2) No(0)
- avg productivity by women is 8 units per day...
- 12 years agoHelpfull: Yes(1) No(11)
- Ans 7
(250*15+150*w)/400=4800 - 8 years agoHelpfull: Yes(1) No(0)
- total work= (250+150)x12=4800,
men total work=(250x15)=3750,
women total work =4800-3750=1050
average work of women=1050/150=7 (ans) - 5 years agoHelpfull: Yes(1) No(0)
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- 12 years agoHelpfull: Yes(0) No(3)
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