Twenty-one time of a positive number is less than its square by 100. The value of the positive number is

Two craftsmen, A and B, are paid a total of ₹700 per week by their employer. If A is paid 250% of the sum paid to how much is A paid per week?

In what ratio is the segment joining (-1,-12) and (3,4) divided by the x-axis?

Average age of mother, father and son was 42 at the time of son's marriage. After one year, an infant was born and after 6 rears of marriage the average age of family becomes 36. Find the age of bride at the time of marriage.

45 people can repair a road in 10 days, working 6 hours a day. In how many days can 30 people, working 6 hours a day, complete the same work?

The curved surface area of a cylinder is five times the area of its base. Find the ratio of radius and height of the cylinder.

The difference between the greatest and least prime numbers which are less than 100 is:

Directions: In each of these questions, two equations (i) and (ii) are given, you have to solve both the equations and give answer accordingly.

(i) 2x³ = $$ \sqrt {256}$$
 (ii) 2y² – 9y + 10 = 0