We check for 1983 to 1986 if any bank had \( \geq 20% \) each year:
Bank A: \[ \text{1983: } \frac{23}{120} = 19.17%,\quad \text{Not qualified} \] Bank B: \[ \text{1984: } \frac{18}{140} = 12.85%,\quad \text{Not qualified} \] Bank C: \[ \text{1986: } \frac{11}{203} = 5.42%,\quad \text{Not qualified} \] Hence, none of the banks meet the criterion.
A bar graph shows the number of students in 5 departments of a college. If the average number of students is 240 and the number of students in the Science department is 320, how many students are there in total in the other four departments?
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?
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?