Question

Samaira writes 6 pages in one hour, Kate writes 12 pages in one hour whereas Maggie writes 8 pages in one hour. They all have to write an equal number of pages. The least number of pages that they can write equally is ___

• A. 24
• B. 65
• C. 43
• D. 22

Answer 1

The correct option is A 24

We know that the least number of pages to be written will be found by finding the L.C.M of the number of pages that they write in an hour. Samaira writes 6 pages, Kate writes 12 and Maggie writes 8. So finding the L.C.M of these numbers:
6 = 2 × 3
12 = 2 × 2 × 3
8 = 2 × 2 × 2

L.C.M will be 2 × 2 × 2 × 3 = 24.
So they have to write 24 pages each.