Aptitude - Time and Work - Discussion
Discussion Forum : Time and Work - General Questions (Q.No. 1)
1.
A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :
Answer: Option
Explanation:
| A's 1 day's work = | 1 | ; |
| 15 |
| B's 1 day's work = | 1 | ; |
| 20 |
| (A + B)'s 1 day's work = |  |
1 | + | 1 |  |
= | 7 | . |
| 15 | 20 | 60 |
| (A + B)'s 4 day's work = | |
7 | x 4 | |
= | 7 | . |
| 60 | 15 |
| Therefore, Remaining work = | |
1 - | 7 | |
= | 8 | . |
| 15 | 15 |
Discussion:
351 comments Page 25 of 36.
Karthikeyan said:
1 decade ago
Can you explain how 7/60 came? AND Next steps.
Jyothi said:
4 years ago
I am not getting. How 1-7/15? Explain, please.
(3)
GUHAN said:
1 decade ago
@Swetha why mutiply with (A*TOTAL CAPACITY)?
Priya said:
1 decade ago
Is there any easy tricks to proceed further?
Sankalp said:
3 years ago
Please explain, why the remaining work is 1.
(60)
Kalai said:
2 years ago
How remaining work =1? Please explain to me.
(7)
Ashim said:
2 years ago
How 7/60 came? Anyone, please explain to me.
(14)
BIKASH SAHOO said:
1 decade ago
(1-7/15) this process I can not understood.
Sudhansu said:
1 decade ago
1-7/15 applied because the whole work is 1.
Karthik said:
9 years ago
how 1-7/15 came? Please explain it clearly.
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