1.

1). 8002). 8503). 9004). 950

Answer»

<P>Let the sum be P and rate be r.

⇒ P (1 + r/100)3 = 2000------ (1)

⇒ P (1 + r/100)6 = 5000------ (2)

Dividing eq(2) by eq(1), we GET,

⇒ (1 + r/100)3 = 5/2----- (3)

Putting EQUATION (3) in equation (1)

⇒ P × 5/2 = 2000

∴ P = 2000 × 2/5 = Rs. 800



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