The salary of two friends Ramu and Raju are in the ratio 4:5. If the salary of each one increases by Rs.6000, then the new ratio becomes 48:55. What is Raju's present salary?

9500

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10500

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11500

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12500

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None

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Solution

The correct option is B
10500

Ratio their salary is 4:5

Let the original salary of Ramu and Raju be 4k and 5k respectively.

After increasing Rs.6000, the ratio becomes 48:55

That is, $\frac{4 k + 6000}{5 k + 6000} = \frac{48}{55}$

55(4k+6000) = 48(5k+6000)

220k+330000 = 240k+288000

20k= 42000

We have to find the original salary of Raju; that is, 5k.

If 20k = 42000 then 5k = 10500.

Hence the required answer is Rs.10500

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