The average weight of three men A B and C is 94 kg another man D joins the group and the average now...........

Quantitative Aptitude (CDS) Average

The average weight of three men A, B, and C is 94 kg, another man D joins the group and the average now becomes 82kg. If another man E, whose weight is 4kg more than that of D , replaces A then the average weight of B, C, D, and E becomes 79kg. The weight of A is?

80kg

95kg

79kg

70kg

Explanation:

three men average weight is 84kg
three men total weight is =94(3)=282
four men average weight is 82kg=82×4=328
D weight is =328-282=46kg
E weight is=46+4=50 kg
B,C,D and E average weight is=79
sum of B,C,D and E weight is=4×79=316
B and C weight is=316-(50+79)
=316-129
=187
A,B and C weight is=282
A weight is=282-187
=95 kg