Question 1 Report
If three numbers P, Q, R are in ratio 6 : 4 : 5, find the value of 3p−q4q+r
2
3
18
Answer Details
P : Q : r = 6 : 4 : 55 = 6 + 4 + 5= 15P = 615 6 15 , q = 415 4 15 , r = 515 5 15 = 13 1 3 To find 3p−q4q+r 3 p − q 4 q + r 3p - q = 3 x 615 6 15 - 415 4 15 1815 18 15 - 415 4 15 = 1415 14 15 ∴ 4q + r = 4 x 415 4 15 + 515 5 15 1615 16 15 = 1615 16 15 + 515 5 15 = 2115 21 15 1415 14 15 x 1521 15 21 = 1421 14 21 = 23
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