Aptitude - Time and Work - Discussion
Discussion Forum : Time and Work - General Questions (Q.No. 20)
20.
Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:
Answer: Option
Explanation:
Ratio of times taken by Sakshi and Tanya = 125 : 100 = 5 : 4.
Suppose Tanya takes x days to do the work.
5 : 4 :: 20 : x  x = |
 |
4 x 20 |  |
| 5 |
x = 16 days.
Hence, Tanya takes 16 days to complete the work.
Discussion:
94 comments Page 8 of 10.
Mahesh Neupane said:
8 years ago
Sakshi efficiency is 1/20.
Tanya Efficiency is 25% more than Sakshi.
So, 1/20+(25%of1/20)=16%.
Tanya Efficiency is 25% more than Sakshi.
So, 1/20+(25%of1/20)=16%.
Subhasis said:
10 years ago
What if I think tanaya takes 75 days and sakshi takes 100 days, then answer will be 15 days.
Sai said:
1 decade ago
Tanya's one day work =(1/20 + 25% of 1/20) = 1/20+1/80 = 1/16 once explain the equation.
Abyzy said:
6 months ago
(SAKSHI) 125%=20,
(TANYA) 100%= x,
125*x = 20*100,
x = (20*100)/125,
x = 16 days.
(TANYA) 100%= x,
125*x = 20*100,
x = (20*100)/125,
x = 16 days.
(4)
Ayush said:
9 years ago
@All.
Refer the post of Kamlesh It's quite easy to understand, Thanks @Kamlesh.
Refer the post of Kamlesh It's quite easy to understand, Thanks @Kamlesh.
Cheenu said:
9 years ago
Can anybody explain this how x = 16 has come from this equation 5:4::20:x?
Devi prasad said:
10 years ago
Their is mixed view of this question but we got both the answer correctly.
Sujith said:
1 decade ago
Tanya is 25% more efficient than Sakshi. Then ratio should be 3:4 rite ?.
Chandu said:
1 decade ago
5 : 4 :: 20 : x
Can you explain the meaning of the above line?
Can you explain the meaning of the above line?
Sahithikarne said:
8 years ago
25% of 20 is 5 then the answer is 20-5=15. But how it is 16?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers