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A person deposited 400 for 2 years 550 f...

A person deposited 400 for 2 years 550 for 4 years and 1200 for 6 years. He received the total simple interest of 1020. The rate interest per annum is(550 4 वर्ष के लिए तथा 1200, 6 वर्षो के लिए जमा किये उसे कुल साधारण बियाज प्राप्त हुआ वार्षिक बियाज की दर है )

A

0.1

B

0.05

C

0.15

D

0.2

लिखित उत्तर

Verified by Experts

(a) Let the rate of interest(माना की बियाज अनुपात)=R%
According to the equestion, `(400xxRxx2)/(100)+(550xxRxx4)/(100)+(1200xxRxx6)/(100)=1020`
8R+22R+72R=1020
102R=1020, R=10%
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