I. x2 = 100
II. y2 - 9y + 20 = 0
...If the S.P. of Rs 2250 results in a 10% discount on list price, what S.P. would result in a 20% discount on list price?
...A shopkeeper fixes the marked price of an item 35% above its cost price. The percentage of discount allowed to gain 8% is
...In how many ways can the selection of 4 boys and 3 girls can be made from a group of 6 boys and 6 girls?
I. 3x2 - 14x + 15 = 0
II. 15 y 2 - 34 y + 15 = 0
I. 2x 2 + 5x + 2 = 0
II. 4 y 2 = 1
