Mathematics Quiz SSS 2

Express the product of 0.007 and 0.057 to two significant figures

• 0.00040

• 0.0039

• 0.0040

• 0.040

The 3rd term of an AP is 4x-2y and the 9th term is 10x- 8y. Find the common difference

• 19-17y

• 8x - 4y

• x - y

• 2x

If 2, a, b, c, d, 22 are terms of an arithmetic progression, find bd – ac

• 4

• 16

• 96

• 108

The 1st and 4th term of a G.P. are – 3 and 24 respectively. The sum of the first four terms is

• 15

• -15

• 45

• - 45

Find the number which must be added to x² – 5x to make it a perfect square

• 4/25

• - 25/4

• 25/4

• 5/2

Find the quadratic equation whose roots are x = - 2 or x = 7

• x² + 2x - 7 = 0

• x² - 2x + 7 = 0

• x² - 5x - 14 = 0

• x² - 5x + 7 = 0

Solve the equation: 3y² = 27y

• y = 0 or 3

• y = 0 or 9

• y = - 3 or 3

• y = 3 or 9

If 4x+ 2y = 16 and 16x-y = 4 Find x

• x = 2, y = 1

• x = - 1, y = 0.5

• x = 1, y = 0.5

• x = 0.5, y = 1

Solve the equation: m² + n² = 29; m + n = 7

• (5,3) and (3,5)

• (5,2) and (2,5)

• (2,3) and (3,2)

• (2,3) and (3,5)

A man is five times as old as his son. In four years time, the product of their ages would be 340. If the son's age is y, express the product of their ages in terms of y.

• 5y² - 16y - 380 = 0

• 5y² - 16y - 330 = 0

• 5y² + 24y - 303 = 0

• 5y² + 24y - 324 = 0