Question

at what rate percent will a sum of money double itself in 5 years​

Answer 1

let the principal amount be Rs. 100

for the amount to double itself the simple interest must be also equal to the principal amount i.e Rs. 100

$= >simple \: interest = 100 \\ \\ = > 100 \times rate \times 5 = 100 \\ \\ = > rate = \frac{1}{5} \\ \\ = > rate = \frac{1}{5} \times 100\% \\ \\ = > rate = 20\%$

Answer 2

Step-by-step explanation:

एडवर्ड रेट ऑफ पोस्ट एंड विलेन सॉन्ग ऑफ मनी डबल एक्सेल फ्री फायर