If Rs. 10 be allowed as true discount on a bill of Rs. 110 due at the end of a certain time, then the discount allowed on the same sum due at the end of double the time is:
[A].
Rs. 20
[B].
Rs. 21.81
[C].
Rs. 22
[D].
Rs. 18.33
Answer: Option E
Explanation:
S.I. on Rs. (110 - 10) for a certain time = Rs. 10.
please provide some more explanation.then it is easily understood by me and others
Karthika said:
(Sat, Dec 4, 2010 12:11:44 PM)
pls explain ... i cant get the concept
Revathy said:
(Mon, Dec 27, 2010 06:22:58 AM)
Plz help us out here.......
Meha said:
(Wed, Jan 5, 2011 12:31:55 AM)
Whar ever the formula is given at biginig that was not comparable here. Which formula you are used here? please expline the formula.
Karthick said:
(Wed, Jan 5, 2011 11:54:23 PM)
Please explain the sum and which formula you are used here.
Raghubabu said:
(Sat, Feb 5, 2011 08:57:30 AM)
I cant understand it please explain by another form.
Abhishek said:
(Wed, Feb 23, 2011 02:34:02 AM)
According to question,
Amount=110,True Discount=10,Present Worth=110-10=100;
Now,we know,P.W.=(Amount*100)/100+(R*T);
So,100=(110*100)/100+(R*T);that implies (R*T)=10;
Again in question,
(R*2T)=(2RT)=2*10=20;Now,
P.W.=(110*100)/100+(2RT)=(110*100)/100+20=91.66;
So,T.D.=Amount-P.W.=110-91.66=Rs.18.34/- (clear)....
Shubha said:
(Fri, Apr 15, 2011 11:53:53 PM)
How you have got p.W=(Amt*100)/(100+(r*t))
Vinay said:
(Sun, Aug 28, 2011 07:37:50 PM)
The discount allowed on the same sum 110 is double the time means 10 becomes 20%
So, 20% will come.
Therefore, principal amount is 100 for both the cases
(20x 110)/120= Rs. 18.33
Anu said:
(Thu, Oct 20, 2011 01:23:31 PM)
Thank you Abhishek.
Kuldeep Kumar Singh said:
(Fri, Jan 20, 2012 08:04:03 PM)
