32
23
2
3
Correct answer is B
P : Q : r = 6 : 4 : 5
5 = 6 + 4 + 5
= 15
P = 615, q = 415, r = 515 = 13
To find 3p−q4q+r
3p - q = 3 x 615 - 415
1815 - 415 = 1415
∴ 4q + r = 4 x 415 + 515
1615 = 1615 + 515
= 2115
1415 x 1521 = 1421
= 23
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