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Question

Find the value of a if,

3a4=154


A

3

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B

4

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C

1

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D

2

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Solution

The correct option is A

3


3a4 is a mixed fraction.

3a4=(3×4) + a4=12 + a4

Given, (12+a)4=154

Since denominators are already equal, equate the numerators. We have,
12+a=15

Therefore, a=1512=3


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