
Step 1: Calculate each bank’s percentage share in each year Check for minimum: - In 1986: Bank C = 11, Total = 203 → \( \frac{11}{203} \times 100 \approx 5.42% \) Compare all banks across years, none is lower than this.
Conclusion: Minimum percentage contribution is by Bank C in 1986.

In a sequence of numbers, each term is generated by multiplying the previous term by 2 and then subtracting 1. If the first term is 3, what is the fourth term in the sequence?
A pie chart shows the distribution of students across 5 faculties in a university. If 20% are in Arts, 25% in Science, 15% in Law, 30% in Engineering, and the rest in Commerce, what is the angle (in degrees) for Commerce?
For any natural number $k$, let $a_k = 3^k$. The smallest natural number $m$ for which \[ (a_1)^1 \times (a_2)^2 \times \dots \times (a_{20})^{20} \;<\; a_{21} \times a_{22} \times \dots \times a_{20+m} \] is: