If a : b = 4 : 5, then (2a + 3b) : (3a + 2b)is equal to:
given data
$$a= 4$$
$$b = 5$$
Apply directly A and B values to the question
$$(2a + 3b) : (3a + 2b)$$
$$(2×4 + 3×5) : (3×4 + 2×5)$$
($$8+15$$) : ($$12+10$$)
Hence solution is = ($$23:22$$)
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