Question

47. The average weight of 4 men A, B, C and D. is 67 kg, The 5th man E is included and the
average weight decreases by 2 kg. A is replaced by F. The weight of F is 4 kg more than E. Average
weight decreases because of the replacement of A and now the average weight is 64 kg. Find the
weight of A
(a)78 kg
(b)66 kg (0)75 kg (0)58 kg (e) None of the above
.
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Answer 1

Answer:

(b).

Step-by-step explanation:

a+b+c+d=4*67=268. ......(1)

Total of a+b+c+d+e=5*65=325

e=57.i.e,f=61

now 61+b+c+d+57=5*64=320

,b+c+d=202

from.... (1) a=66 .

Hence ans.(b)66.