A) 3
B) 6
C) 5
D) 4
Correct Answer: C
Solution :
P = 90) ?s, Q = 8 's, P + R = 12 's, So Q is 5 's heavier than R. \[\therefore \] The required number is 5 as 8 's - 3 's = 5 ?s.You need to login to perform this action.
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