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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]  26 May 2018, 10:12
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Question Stats:

100% (00:31) correct 0% (00:00) wrong based on 9 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]  26 May 2018, 11:35
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Expert's post
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

Cheers,
Brent
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Brent Hanneson – Creator of greenlighttestprep.com

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Re: The value of (1-5/7)(1+3/4) is [#permalink]  26 May 2018, 12:36
1
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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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