1.

1). 14522). 13203). 15524). 1420

Answer»

LET the amount be RS. y

Compound interest for 2nd year can be given as

⇒ CI for 2nd year = y{(1 + 10/100)2 – (1 + 10/100)} = 1200

⇒ 1200 = y(1.12 – 1.1)

⇒ 1200/0.11 = y

⇒ y = Rs. 10909.1

Compound interest for 4th year can be given as

⇒ CI for 4th year = y{(1 + 10/100)4 – (1 + 10/100)3}

⇒ CI for 4th year = 10909.1(1.14 – 1.13) = 10909.1 × 0.1331

⇒ CI for 4th year = Rs. 1452

∴ Interest for 4th year is Rs. 1452



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