Question

Ronald and elan are working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while elan takes 5 hours to type 40 pages. How much time will they take, working together

Answer 1

Answer:

8 hours 15 min

Step-by-step explanation:

Ronald’s 1 hour’s work = \frac{32}{6}=\frac{16}{3}\ pages

Pages typed in 6 hrs. = 32, Pages typed in 1 hr = \frac{32}{6}

Elan’s 1 hour’s work = 8 pages

1 hour’s work of the both = \frac{16}{3}+8 = \frac{40}{3}\ pages

∴ Required Time = \frac{110\times 3}{40} = \frac{33}{4}\ hours = 8\ hours\ 15\ minutes

Hope this helps

Answer 2

Answer:

8 hr 15min

Step-by-step explanation:

Number of pages typed by Ronald in 1 hour

=326=163

Number of pages typed by Elan in 1 hour

=405=8

Number of pages typed by both in 1 hour

=(163+8)=403

∴Time taken by both to type 110 pages

= (100×340)hours=814hours=8 hours 15 minutes