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The value of (1-5/7)(1+3/4) is

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The value of (1-5/7)(1+3/4) is [#permalink] New post 26 May 2018, 10:12
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Question Stats:

94% (00:24) correct 5% (00:35) wrong based on 57 sessions
The value of \((1-\frac{5}{7})(1+\frac{3}{4})\) is

A. \(\frac{1}{28}\)

B. \(\frac{3}{14}\)

C. \(\frac{9}{28}\)

D. \(\frac{13}{28}\)

E. \(\frac{1}{2}\)
[Reveal] Spoiler: OA

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Re: The value of (1-5/7)(1+3/4) is [#permalink] New post 26 May 2018, 11:35
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Carcass wrote:
The value of \((1-\frac{5}{7})(1+\frac{3}{4})\) is

A. \(\frac{1}{28}\)

B. \(\frac{3}{14}\)

C. \(\frac{9}{28}\)

D. \(\frac{13}{28}\)

E. \(\frac{1}{2}\)


(1 - 5/7)(1 + 3/4) = (7/7 - 5/7)(4/4 + 3/4)
= (2/7)(7/4)
= 1/2

Answer: E

Cheers,
Brent
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Re: The value of (1-5/7)(1+3/4) is [#permalink] New post 26 May 2018, 12:36
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As per the BODMAS rule, you need to solve brackets first and within the brackets compute the values. Then multiply to get the final result. Hope you got the idea :)
P.S. Solution has been provided above, here is the logic behind that.
Cheers!
Re: The value of (1-5/7)(1+3/4) is   [#permalink] 26 May 2018, 12:36
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