Dear student,7(i)P=Rs 196; A=Rs 225; T=2yrs; R=?A=P1+r100n225=1961+r1002225196=1+r1001514-1=r100114*100=rr=717%For other questions start a new threadRegards

Please do 7th one

D e a r s t u d e n t, 7 (i) P = R s . 196; A = R s . 225; T = 2 y r s; R = ? A = P {(1 + \frac{r}{100})}^{n} 225 = 196 {(1 + \frac{r}{100})}^{2} \sqrt{\frac{225}{196}} = 1 + \frac{r}{100} \frac{15}{14} - 1 = \frac{r}{100} \frac{1}{14} * 100 = r r = 7 \frac{1}{7} % F o r o t h e r q u e s t i o n s s t a r t a n e w t h r e a d R e g a r d s

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