The simple interest on ₹ 8,490 at 5% and 73 days is

1. ₹ 849

2. ₹ 84.90

3. ₹ 8.49

4. none of these

Given:

P = ₹ 8,490

R = 5%

T = 73 days = $\dfrac{73}{365}$ years

$\because \text{S.I.} = ₹ \Big(\dfrac{P \times R \times T}{100}\Big)\\[1em] \Rightarrow \text{S.I.} = ₹ \Big(\dfrac{8,490 \times 5 \times 73}{100 \times 365}\Big)\\[1em] \Rightarrow \text{S.I.} = ₹ \Big(\dfrac{30,98,850}{36500}\Big)\\[1em] \Rightarrow \text{S.I.} = ₹ 84.9$

Hence, option 2 is the correct option.