Aptitude - Time and Work - Discussion
Discussion Forum : Time and Work - General Questions (Q.No. 18)
18.
Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?
Answer: Option
Explanation:
| Number of pages typed by Ravi in 1 hour = | 32 | = | 16 | . |
| 6 | 3 |
| Number of pages typed by Kumar in 1 hour = | 40 | = 8. |
| 5 |
| Number of pages typed by both in 1 hour = |  |
16 | + 8 |  |
= | 40 | . |
| 3 | 3 |
 Time taken by both to type 110 pages = |
|
110 x | 3 | |
hours |
| 40 |
| = 8 | 1 | hours (or) 8 hours 15 minutes. |
| 4 |
Discussion:
53 comments Page 1 of 6.
JIGSAW said:
9 months ago
Ravi takes 6 hours to type 32 pages =>7.5 hours to type 40 pages.
Kumar takes 5 hours to type 40 pages.
if they work together & assignment of 110 pages.
WKT after 7.5, 40 pages of Ravi + 40 of Kumar + 20 pages of Kumar = 100 pages - 7 hours 30 mins.
110 pages.
We get 8 hours and 15 min.
Kumar takes 5 hours to type 40 pages.
if they work together & assignment of 110 pages.
WKT after 7.5, 40 pages of Ravi + 40 of Kumar + 20 pages of Kumar = 100 pages - 7 hours 30 mins.
110 pages.
We get 8 hours and 15 min.
Nikhil said:
1 year ago
@All.
In 25min and 15min it is;
8.25 hrs = 8hrs + 0.25hrs,
0.25hrs = 15min.
So, the answer is 8hrs 15min.
In 25min and 15min it is;
8.25 hrs = 8hrs + 0.25hrs,
0.25hrs = 15min.
So, the answer is 8hrs 15min.
(1)
Logesh said:
1 year ago
Good, Thanks @Himansu.
Gaurav kadaskar said:
1 year ago
The correct answer is 8.25 hr.
(5)
Aditya said:
3 years ago
40/3 Pages takes 1 hour.
110 pages will take x hours.
Therefore : 110*(40/3) = 110 * 3/40.
110 pages will take x hours.
Therefore : 110*(40/3) = 110 * 3/40.
(4)
Kishan Maurya said:
4 years ago
The right Answer is 8.25.
(21)
Supritam Mohanty said:
4 years ago
Ans. is 8.25.
The ans is 8(1/4),
That means 8.25.
Because 1/4= 0.25.
The ans is 8(1/4),
That means 8.25.
Because 1/4= 0.25.
(6)
M.Sheela said:
4 years ago
Those who have doubt in 25 minutes & 15 min.
Just look at here;
The Answer is 8 (1/4) = 8 hrs 1/4*60 minutes.
i.e 8hrs and 15 minutes.
Or we can say 1/4th of 1hr(60min.) is 15 minutes.
Just look at here;
The Answer is 8 (1/4) = 8 hrs 1/4*60 minutes.
i.e 8hrs and 15 minutes.
Or we can say 1/4th of 1hr(60min.) is 15 minutes.
(6)
Ladshika Mohan said:
5 years ago
3*110/40 = 8.25 then how come 8.15?
(2)
Pema said:
5 years ago
@Himanshu,
Your method is very simple and clean, thanks.
But 32/6 gives you approximately 5.33.
Following your steps, the answer is option D. Which is 8hours:25mins. Please check it.
Your method is very simple and clean, thanks.
But 32/6 gives you approximately 5.33.
Following your steps, the answer is option D. Which is 8hours:25mins. Please check it.
(4)
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