MBA Exam

Brass is an alloy of Cu and Zn. Bronze is of Cu(80%), Zn(4%), Sn(16%). A fussed mass of both has Cu(74%), Zn(16%), Sn(10%). What is the composition of Cu and Zn in Brass ?Sol plzz ....

1) 64%,36%
2) 33%,67%
3) 50%, 75%
4) 35%,65%

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MBA Other Question
What is the number of common tangents of the circles x^2 + y^2 – 2x – 2y – 23 = 0 and x^2 + y^2 – 12x– 26y + 141 = 0?(a) 0 (b) 2 (c) 3 (d) 4

1) a
2) b
3) c
4) d
 Product of all factors of 216^2?

1) 216^49
2) 216^98
3) 216^48
4) 216^50