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Direct Proportionality

If P =21+ b &...

Question

If P = 2(l+b) & P = 25, l = 8, then b is equal to

A

4

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B

6

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C

6.5

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D

4.5

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Solution

The correct option is D
4.5

25 = 2(8 + b)
b = 4.5

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Similar questions

Q. If P (10, r) = 5040, then r =

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B

are two independent events such that

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P (¯ ¯¯ ¯ A \cap B) = \frac{8}{25}

P (A \cap B) = k

\frac{25 k}{2}

a, b, c, l, m

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a - 4 b + 6 c - 4 l + m

A

B

are independent event such that

P (A \cap B^{'}) = \frac{3}{25}

P (A^{'} \cap B) = \frac{8}{25}

P (A) =

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