I. 9x²-45x+56=0

II. 4y²-17y+18=0

I.  4x²+16x+15=0

II.  2y²+3y+1=0

I. 2x²-7x+3=0

II. 2y²-7y+6=0

8 years ago, Jyoti’s age was equal to the Swati’s present age. If the sum of Jyothi’s age 10 years from now and swati’s age 6 years ago is 88 years. What is the Kusum’s age 14 years ago if kusum is 8 years younger to Swati ? (in years)

In what respective ratio two varieties of rice costing INR 36 per kg and INR 60 per kg be mixed; so that by selling the mixture of INR 54 per kg 20%profit is earned?

INR 1,500/-were invested for 5 years in scheme A which offers simple interest at a rate of 14%p.a.. The amount received after 5 years and some additional money, is then invested in scheme B. For 2 years, which offers compound interest(compounded annually) at a rate of 20% p.a.. If the compound interest received from scheme B after 2years is INR 1,408/-, what was the additional money invested in scheme B apart from the amount received from scheme A ?