As P : Q = 3 : 4 and Q : R = 6 : 7 To find the ratio of P : Q : R, we will make Q equal in both ratios ∴ multiplying first ratio by 3 and second ratio by 2 ∴ P : Q = 9 : 12 and Q : R = 12 : 14 ∴ P : Q : R = 9 : 12 : 14 Now the share of Q can be given as =12/(9+12+14)×700 =(12/35)×700 = Rs. 240 Question N