If the compound interest on a certain sum for 3 years at the rate of…

14\(\frac{2}{7}\)% = \(\frac{1}{7}\)

⇒ C.I. of 3 years = (49 × 3) + (7 × 3) + 1 = 169

⇒ ATQ, 169R = 101.4

⇒ 1R = 0.6

⇒ Principal = 343 × 0.6 = Rs.205.80