Question

50. एक धनराशि 16 वर्ष में साधारण ब्याज से दुगुनी हो जाती है। वार्षिक दर होगी (A) 10% 6 (B) 61/4% (C) 8% (D) 16%​

Answer 1

Answer:

Let x is original price and y is interest

after 16 years original price is doubled = 2x

interest = 2x - x

interest = x

interest = P×R×T÷100

interest = 16 × y × x ÷ 100

x = 16xy ÷ 100

y = 25 ÷ 4

then,option b is correct