Question 70

If a : b = 3 : 2, then (5a + 2b) : (3a + 4b) is equal to:

Solution

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a : b = 3 : 2, then (5a + 2b) : (3a + 4b)

$$\frac{a}{b\ }=\frac{3}{2}$$

So, a=3 and b=2

(5a + 2b) : (3a + 4b)

$$\left(5\times\ 3+2\times\ 2\ \right):\left(\left(3\times\ 3+4\times\ 2\right)=19:17\right)$$

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