Aptitude - True Discount - Discussion
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Read more:"If you judge people, you have no time to love them."
- Mother Teresa
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The true discount on Rs. 2562 due 4 months hence is Rs. 122. The rate percent is:
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12% | [B]. |
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15% | [D]. |
14% |
Answer: Option B
Explanation:
P.W. = Rs. (2562 - 122) = Rs. 2440.
 S.I. on Rs. 2440 for 4 months is Rs. 122.
| Rate = |
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100 x 122 |
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= 15%. |
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Rohith said:
(Fri, Sep 10, 2010 02:00:07 AM)
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I didn't undersatnd the usage of 1/3 in this solution.
Can any one help me in sorting out this problem? |
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Venkadesh Virudhagiri said:
(Sun, Oct 17, 2010 07:50:21 AM)
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| Due is in month, so we convert into year 4/12 = 1/3. |
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S.V.S Rama Chaitanya said:
(Fri, Dec 3, 2010 07:38:40 AM)
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| Why should we deduct Rs 122/- from 2562/- is there any basic concept between them please explain. |
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Shreya said:
(Thu, Dec 30, 2010 05:42:34 AM)
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Yup. Rama.
Here formula used=.
Amount=pw+tc.
Pw=amount-tc. |
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Karthick said:
(Wed, Jan 5, 2011 11:37:02 PM)
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| Explain for pw and tc. |
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Deepan said:
(Wed, Mar 9, 2011 01:33:30 AM)
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| I cant understand the solution can anyone help me. |
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Arjun---≫ said:
(Wed, Mar 9, 2011 02:17:27 PM)
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@Shreya
Formula used by you is wrong.
It is,
amount=present worth(pw)+true discount(td)
and hence, its comes as
pw=amount-td |
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Gnana said:
(Sun, Mar 13, 2011 11:16:24 PM)
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| How 15% is possible, can any one help for it. |
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Aishu said:
(Thu, Apr 28, 2011 10:37:11 AM)
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100*122/2440*(1/3)
1/3 can be written as 100*122*3/2440*1
by solving this equation we get the value 15% |
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Abhishek Kumar Tiwari said:
(Wed, Aug 10, 2011 09:00:11 AM)
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| What is the P.W ? I know 4 month is the 1/3 of the year. But I don't no P.W. |
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Yazhini said:
(Sun, Aug 21, 2011 09:58:27 PM)
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| Totally there are 12 months int the year. Hence 4/12months=1/3. |
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Kathya said:
(Wed, Nov 2, 2011 12:07:57 PM)
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| So nice explanation. |
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Rajeev said:
(Thu, Dec 8, 2011 11:45:46 AM)
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| Since time and intrest must be calculated in year so month convert into year. |
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Hannah said:
(Fri, Dec 16, 2011 09:17:59 PM)
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| Im not able to understand by seeing the sum which formula i have to use. |
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Deepa said:
(Tue, Jan 17, 2012 10:46:01 PM)
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amt=present worth + true discount
pw=amt-td
2562-122
pw=2440
TIME=4MONTHS/12=1/3
SI=PTR/100
PTR=SI*100
R=(SI*100)/PT
R=(122*100)/2440*1/3
R=15% |
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