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Chapter 1: Q33. (page 51)

If ab=8and ac-5=11, then bc=

A.93 B. 2 C. 58 D. cannot be determined

Short Answer

Expert verified

The value of bc is 2.

Step by step solution

01

– Description of step.

Add 5 on both the sides of ac-5=11 and simplify.

ac鈭�5+5=11+5ac=16c=16a

02

– Description of step.

Divide each side of the ab=8 and simplify.

aba=8a1b=8ab=a8

03

– Description of step.

Substitute 16a for cand a8 for binto bcand simplify.

bc=a8鈰�16a=168=2

The value of bc is 2. Therefore, option B is the correct answer.

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