I. x=√625

II. y=√676

I. 2x+3y=14

II. 4x+2y=16

I. x²+20 = 9x

II. y²+42=13y

I. x²+5x+6=0

II. y²+7y+12=0

Manish bought 25 kg of rice at INR 32 per kg and 15 kg of rice at INR 36 per kg. What profit did he get when he mixed the two varieties together and sold it at INR 40.20 per kg

Farah was married 8 years ago. Today her age is 1 2/7 times to that at the time of marriage. At present her daughter’s age is 1/6^th of her age. What was her daughter’s age 3 years ago