50.The banker's discount on Rs. 1800 at 12% per annum is equal to the true discount on Rs.1872 for the same time at the same rate. Find the time?
A. 3 months B. 4 months
C. 5 months D. 6 months
Answer:
S.I on Rs.1800 = T.D on Rs.1872.
P.W on Rs.1872 is Rs.1800.
Rs.72 is S.I on Rs. 1800 at 12%.
Time =(100x72 / 12x1800)
= 1/3 year
= 4 months.
