Banker's Discount Practice Test 2

Here, B.D. for $\frac{3}{2}$ years = Rs. 558
Since, B.D. for 2 years = $558\times \frac{2}{3}\times 2$ = Rs. 744
T.D. for 2 years = Rs. 600
Hence, sum = $\frac{744\times 600}{744-600}$ = $\frac{744\times 600}{144}$ = Rs. 3100
Since, Rs. 744 is S.I. on Rs. 3100 for 2 years
Rate $=\frac{744\times 100}{3100\times 2}=12\%$