1.

1). 240002). 250003). 300004). 20000

Answer»

On a SUM of Rs. P at a RATE of R% p.a. after n years,

COMPOUND interest = P[(1 + R/100)n - 1]

LET the sum INVESTED be Rs. P

⇒ CI = 4160 = P[(1 + 8/100)2 - 1]

⇒ 4160 = P[0.1664]

⇒ P = 4160/0.1664 = Rs. 25000

∴ The sum invested is Rs. 25000



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