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Question

If 5a = 3125, then the value of 5(a - 3) is:


A

878 × m

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B

8.78 × Kg

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C

87.8 × Kg

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D

8.78 × Kg

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Solution

The correct option is D

8.78 × Kg


5a= 3125⇒ 5a= 55 a= 5

∴5(a- 3)
= 5(5 - 3)
= 52= 25


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