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Question

A rope is (8a – b) metres long. A length of (3a + b) is cut out of it. How much rope is left?


A

(5a + 2b) metres

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B

5a metres

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C

(5a – b) metres

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D

(5a – 2b) metres

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Solution

The correct option is D

(5a – 2b) metres


The rope is (8a – b) metres long

Length of rope left = (8a – b ) – (3a + b)

= 8a – b – 3a – b = 5a – 2b

= (5a-2b) metres of the rope is left


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