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Find the value of N in the following equation 1/3+2/9=(N+1)/(N+5).
Question

Find the value of N in the following equation 1/3+2/9=(N+1)/(N+5).

A.

1

B.

3

C.

4

D.

0

Correct option is C

Solution:

13+29=N+1N+539+29=5959=N+1N+55(N+5)=9(N+1)5N+25=9N+95N9N=9254N=16N=164=4\frac{1}{3} + \frac{2}{9} = \frac{N+1}{N+5} \\\frac{3}{9} + \frac{2}{9} = \frac{5}{9} \\\frac{5}{9} = \frac{N+1}{N+5} \\5(N + 5) = 9(N + 1) \\5N + 25 = 9N + 9 \\5N - 9N = 9 - 25 \\-4N = -16 \\N = \frac{-16}{-4} = 4​​

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