Value of 4xy when x = 3 and y = 5 is

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Solution

The correct option is C
60

$4 x y = 4 \times x \times y$
On substituting the values of x and y, we get

$4 x y = 4 \times 3 \times 5 = 12 \times 5 = 60$

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Similar questions

Find the value of $4 x^{2} + y^{2} + 25 z^{2} + 4 x y - 10 y z - 20 z x$ when x = 4, y = 3 and z = 2.

4 x y (x - y) - 6 x^{2} (y - y^{2}) - 3 y^{2} (2 x^{2} - x) + 2 x y (x - y)

x = 5

y = 13

{sec}^{2} θ = \frac{4 x y}{{(x + y)}^{2}}

x

y ?

x = y = 0

The value of $(3 x^{2} + 5 y^{2}) (4 x y - 5 y)$ , when $x = 2$ and $y = 3$ is $513$ .

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