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If a : B = 3 : 8. Find the Value of (4a + 3b)/(6a - B) - ICSE Class 10 - Mathematics

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Question

If a : b = 3 : 8. Find the value of `(4a + 3b)/(6a - b)`

Solution

a : b = 3 : 8

`=> a/b = 3/8`

`(4a + 3b)/(6a - b) = (4(a/b) + 3)/(6(a/b) - 1)`  (Dividing each term by b)

`= (4(3/8) + 3)/(6(3/8) - 1)`

`= (3/2 + 3)/(9/4  - 1)`

`= (9/2)/(5/4)`

= 18/5

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APPEARS IN

 Selina Solution for Selina ICSE Concise Mathematics for Class 10 (2018-2019) (2017 to Current)
Chapter 7: Ratio and Proportion (Including Properties and Uses)
Ex.7A | Q: 3

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Solution If a : B = 3 : 8. Find the Value of (4a + 3b)/(6a - B) Concept: Ratios.
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