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7 tailors stitch a PPE suit in 26 hours. How much time will 13 tailors take to stitch 12 PPE suits?

7 tailors stitch a PPE suit in 26 hours. How much time will 13 tailors take to stitch 12 PPE suits? Correct Answer  7 days

Given:

7 tailors stitch a PPE suit = 26 hours

Formula used:

(M1 × H1)/W1 = (M2 × H2)/W2

Where, M = Number of workers, H = Number of hours, W = work done

Calculation:

Let the required time be D

According to the question

(7 × 26)/1 = (13 × D)/12

⇒ D = 14 × 12 

⇒ 168 hours = 168/24 days

⇒ 7 days 

∴ The required time is 7 days.

Mistake Points Since all options are given in days, so we have to convert hours into days by simply dividing them by 24 

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