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Question

# If the total working hours are 227 hours, then calculate the number of hours spent in assembling.

A
57 hrs
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B
37 hrs
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C
27 hrs
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D
47 hrs
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Solution

## The correct option is A 57 hrs First of all, let's convert the mixed fraction to improper fraction with denominator 7. 127 = 1 + 27 = 77 + 27 = 97 Time taken in stamping = 47 hrs Time taken in welding = 17 hrs Time taken in painting = 97 hrs Time taken in inspection = 37 hrs Total time taken =227 hrs Time taken in assembling will be: ⇒227−4+1+9+37 ⇒227−177 ⇒22−177 ⇒57 hrs Hence, 57 hours are taken in assembling. Marking the points on a line plot:

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