Question

How much time does it take to embroider 1 table cloth?

• A. 15 minutes 50 seconds
• B. 12 minutes 48 seconds
• C. 20 minutes 21 seconds
• D. 15 minutes 45 seconds

Answer 1

The correct option is C 20 minutes 21 seconds

Time taken to embroider 9 table cloths = 3 hours 3 minutes 9 seconds

Time taken to embroider 1 table cloth
= $\frac{3}{9}$ hours + $\frac{3}{9}$ minutes + $\frac{9}{9}$ seconds

= $\frac{1}{3}$ hour + $\frac{1}{3}$ minute + 1 second

$\frac{1}{3}$ hour = $\frac{1}{3}\times 60$ minutes
= 20 minutes

$\frac{1}{3}$ minute = $\frac{1}{3}\times 60$ seconds
= 20 seconds

20 minutes + 20 seconds + 1 second
= 20 minutes 21 seconds

It takes 20 minutes 21 seconds to embroider 1 table cloth.