IBM Company Numerical Ability Averages

Average weight of 25 boys in a class is 48 kgs. The average weight of class of 40 students is 45 kgs. What is the average weight of the 15 girls in the class?

Read Solution (Total 3)

The avg weight of class of 40 stud=40*45=1800
the avg weight of 25 boys in a class=25*48=1200
the avg weight of 15 girls in a class=1800-1200=600/15=40
12 years agoHelpfull: Yes(27) No(1)

The avg weight of class of 40 stud=40*45=1800
the avg weight of 25 boys in a class=25*48=1200
the avg weight of 15 girls in a class=1800-1200=600
13 years agoHelpfull: Yes(4) No(7)
total wght of class=25*48=
40 is the ans
12 years agoHelpfull: Yes(1) No(0)

IBM Other Question

Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. What is the total cost of 24 apples and 24 mangoes? How many candidates were interviewed everyday by the panel A out of the three panels A, B and C?
I.The three panels on average interview 15 candidates every day.
II.Out of a total of 45 candidates interviewed everyday by the three panels, the number of candidates interviewed by panel A is more by 2 than the candidates interviewed by panel c and is more by 1 than the candidates interviewed by panel B.

A. I alone sufficient while II alone not sufficient to answer B. II alone sufficient while I alone not sufficient to answer
C. Either I or II alone sufficient to answer D. Both I and II are not sufficient to answer
E. Both I and II are necessary to answer