The true discount on Rs. 1760 due after a certain time at 12% per annum is Rs. 160. The time after which it is due is: Choose the correct answer
A) 6 months
B) 8 months
C) 9 months
D) 10 months
E) 15 months
T10 months=Amt*R*T/(100+RT)   given T10 months=160,Amt=1760,R=12,T=?   by substituting the values we get,   160=(1760*12T)/(100+12T)   160(100+12T)=1760*12T   100+12T=(1760*12T)/160   100+12T=132T   120T=100   t=100/120=5/6yrs i.e (5/6)*12=10months   ANSWER:10 months
<result>D</result>
The true discount on Rs. 1760 due after a certain time at 12% per annum is Rs. 160. The time after which it is due is: