Question

Use the following information to answer the next question.

Ashu, a typist, types one page in 12 minutes, while Sunny takes 20 minutes to type the same page.

If both of them start typing a page together, then after how much time will they simultaneously start typing a fresh page?

Answer 1

according to the question both will simemtaneously start typing after 20 min as soon as sunny finishes

Answer 2

Answer:

Ans is 60 mins or 1 hr

Step-by-step explanation:

Time taken by Ashu to complete one page = 12 min

Time taken by Sunny to complete the same page = 20 min

The time at which they will simultaneously start typing a fresh page will be the LCM of 12 and 20.

12 = 2 × 2 × 3 = 22 × 3

20 = 2 × 2 × 5 = 22 × 5

∴ LCM (12, 20) = 22 × 3 × 5 = 60

Thus, they will simultaneously start typing a fresh page after 60 minutes i.e.1 hr.