Question

If 5 2x = 625, 10 3y = 0.001 then the value of x + y

Answer 1

Step-by-step explanation:

5

3x

=125

5

3

=5

3x

=125

By comparing powers

⇒3=3x

∴x=1

Now 10

y

=0.001

10

−3

=10

y

=0.001

By comparing powers

∴y=−3

∴x+y=1−3=−2

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