किस प्रतिशत वार्षिक चक्रवृद्धि ब्याज की दर से रुपए 1000 की धनराशि दो वर्षा मे 1 ,102 . 50 हो जाएगी|

Options

A. 0.05
B. 0.055
C. 0.06
D. 0.065

Answer

a

Explanation

(a) In these type of question go through options to save your valuable time.
Option (a) `rArr` Rate of interest = 5%
`rArr` Amount = Principal `(1 + ("rate")/(100))`
`rArr 1102.5 = 1000(1 + (5)/(100))^(2)`
`rArr (1102.5)/(1000) = (441)/(400)`
`rArr 1.1025 =1.1025`
`rArr ` L.H.S = R.HS
Options (a) is correct