1) In how many years will a sum of money triples itself at 10% interest per annum ?(2)2) In final exams Salil scored 750 marks out of 800 and Vivekscored 1395 out of 1500. Who has scored more and by whatpercentage ?(2)3) The two sides of a triangle measure 34x2 + 36x - 7 cm and4x2 + 4x + 5 cm . If the perimeter of triangle is 48 cm. Find itsthird side.(3)4) By selling a belt for Rs 96, a shopkeeper gains Rs 24. Find hisgain percent.(3)

1) In how many years will a sum of money triples itself at 10% inter

1.	1) In how many years will a sum of money triples itself at 10% interest per annum ?(2)2) In final exams Salil scored 750 marks out of 800 and Vivekscored 1395 out of 1500. Who has scored more and by whatpercentage ?(2)3) The two sides of a triangle measure 34x2 + 36x - 7 cm and4x2 + 4x + 5 cm . If the perimeter of triangle is 48 cm. Find itsthird side.(3)4) By selling a belt for Rs 96, a shopkeeper gains Rs 24. Find hisgain percent.(3)
Answer» ANS1 = 10 YEARS . A SUM becomes 3 times. RATE = 20% p.a.ans2