CSC
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Numerical Ability
Averages
The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?
A. 76 kg
B. 76.5 kg
C. 85 kg
D. Data inadequate
E. None of these
Read Solution (Total 5)
-
- If x is initial average wt. of 8 persons and y is weight of new person, then
8x+y-65 = 8*(x+2.5)
then y = 85 years. - 12 years agoHelpfull: Yes(14) No(6)
- Total weight increased = (8 x 2.5) kg = 20 kg.
Weight of new person = (65 + 20) kg = 85 kg. - 9 years agoHelpfull: Yes(6) No(1)
- C.85
PERSONS - 9 years agoHelpfull: Yes(0) No(0)
- C.85
PERSONS - 9 years agoHelpfull: Yes(0) No(0)
- C.85
PERSONS - 9 years agoHelpfull: Yes(0) No(0)
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