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6000 becomes7200 in 4 years. If the rate...

6000 becomes7200 in 4 years. If the rate becomes 1.5 time of itself, the amount of the same principal in 5 years will be(6000 की राशि 4 वर्षो में 7200 हो जाती है यदि बियाज की दर स्वय की 1 .5 गुना हो जाती है तब उसी धनराशि पर 5 वर्ष बाद मिश्रधन क्या होगा )

A

8000

B

8250

C

9250

D

9000

लिखित उत्तर

Verified by Experts

(b)
By using formula `"Rate"=(1200)/(6000)xx(100)/(4)=5%`
New rate(नयी दर)%=`5xx(3)/(2)=7.5%`
Interest after 5years(5 वर्षो के बाद बियाज) `(6000xx7.5xx5)/(100)=2250`
Hence amount (6000+2250)=8250
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