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Rs. 20 is the true discount on Rs. 260 due after a certain time. What will be the true discount on the same sum due after half of the former time, the rate of interest being the same?
A. Rs. 10 B. Rs. 10.40
C. Rs. 15.20 D. Rs. 13
Read Solution (Total 2)
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- given TD=20, S=260 from these we can know PW=S-TD=260-20=240
given TD for sum is 20
SI on PW is TD
=>SI on 240 is 20
now given TD is half of the former time
=> SI on 240 is 10
=> TD on 250(i.e 240+10) is 10 (since given TD on sum=PW+TD is half the former time)
=> TD on 260=(10/250)*260=Rs10.40
- 12 years agoHelpfull: Yes(12) No(1)
- True Discount=(amnt*R*T)/100.
hence 10 rs - 12 years agoHelpfull: Yes(1) No(13)
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