Question
If P:Q:R = 2:3:5 and R – P = 72, then what is the value
of 3P + 2R – Q?Solution
ATQ,
Let P = ‘x’
then, Q = x × (3/2) = ‘1.5x’
And, R = x × (5/2) = ‘2.5x’
ATQ;
2.5x – x = 72
Or, 1.5x = 72
So, x = 48
So, ‘P’ = 48, ‘Q’ = 1.5 × 48 = 72 and ‘R’ = 2.5 × 48 = 120
Required value = (3 × 48) + (2 × 120) – (72) = 192
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