4/5 of a certain number is 64.half of the number is?

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RRB ASSISTANT LOCO PILOT (Patna) 2013 click here to view all questions

4/5 of a certain number is 64.half of the number is?

A40

B32

C80

D16

rahul ? Jan 15 '2020 at 9:12

Correct answer is: 40

Explanation:

Let the number be x

Therefore,
\(\frac{4x}{5} = 64\)
4x = 320
x = 80

Hence, \(\frac{1}{2} \)of the number = \(\frac{1}{2} \times 80 \)= 40

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Correct answer is: 40 Explanation: Let the number be x Therefore, \(\frac{4x}{5} = 64\) 4x = 320 x = 80 Hence, \(\frac{1}{2} \)of the number = \(\frac{1}{2} \times 80 \)= 40 rahul ? answered Jan 15 '2020 at 9:12 All Comments

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