The difference between C.I. and S.I. on ₹ 6,000 at 8% per annum in both the cases and in one year is:

1. ₹ 480

2. nothing

3. ₹ 240

4. none of these

P = ₹ 6,000

R = 8%

T = 1 year

$\text{Interest} = \Big(\dfrac{P \times R \times T}{100}\Big)\\[1em] = ₹ \Big(\dfrac{6,000 \times 8 \times 1}{100}\Big)\\[1em] = ₹ \dfrac{48,000}{100}\\[1em] = ₹ 480$

And

$\text{Amount = P + Interest}\\[1em] = ₹ 6,000 + 480\\[1em] = ₹ 6,480$

And

$\text{Compound Interest = Final amount - Original Principal}\\[1em] = ₹ 6,480 - ₹ 6,000\\[1em] = ₹ 480$

Difference between S.I. and C.I. = ₹ 480 - ₹ 480 = 0.

Hence, option 2 is the correct option.