If 56 x 75 x 60 x 84 x 210 = 2 p x 3 q x 5 r x 7 s, then what is

| If 56 x 75 x 60 x 84 x 210 = 2p x 3q x 5r x 7s, then what is the value of [(p + q)/s] +r?
A. 6
B. 8
C. 12
D. 10
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Right Answer is: B
SOLUTION
56× 75× 60× 84× 210=2p x 3q x 5r x 7s
28× 34× 54× 73=2p× 3q× 5r× 7r
P=8
q=4
r=4
s=3