1.

/200 at 12.75% per annum for 9 months.A certain sum of money amounts to 1560 in 2 years and Ĺş 2100 in 5 years. Find therate percentage per annum.

Answer»

suppose the amount is xthenAmount = SI + principal

X + 2rx = 1560......................iX + 5rx =2100 .....................iiSolve the equationx=1200 and r is 15r= rate of interestx = amount2rx and 5rx are used



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