If 94*6714 is divisible by 11, where * is a digit, then * is equal to

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

I. 2x ² + 5x + 2 = 0

II. 4 y ² = 1

I. 3x² - 14x + 15 = 0

II. 15 y ² - 34 y + 15 = 0

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?