Formative Assessment

• 4

• 3

• 5

• 2

Which of the following is a quadratic equation?

• both (a) and (b)

• -10

• 10

• 0

• -2

• Real and distint

• real and equal

• imaginary

• irrational

A two-digit number contains the smaller of the two digit in the ten's place. The product o the digits is 24 and the difference between the digits is 5. The number is:

• 83

• 46

• 27

• 38

The difference between the present age of a man and his son is 25 years. if the product of their ages ten years back be 150, find the present age of son.

• 20 years

• 10 years

• 15 years

• 25 years

• 6

• -7/2

• -3

• 3

Which of the following equation has 2 as a root?

The quadratic equation having roots 0 and 5/8 is..