CLASS 10 - PA1 - REVISION

If one zero of the quadratic polynomial x² + 5x + 6 is ─3, then find the other zero

• 3

• 2

• ─ 2

• None of these

If the zeroes of the quadratic polynomial x2 + (a + 1) x + b are 2 and -3, then

• a = -7, b = -1

• a = 5, b = -1

• a – 0, b = -6

• a = 2, b = -6

If two positive integers a and b are written as a = p³q² and b = pq³; p, q are prime numbers. Then HCF (a, b) is

• pq

• p²q²

• p³q³

• pq²

The HCF of two numbers is 145 and their LCM is 2175. If one number is 725, find the other

• 235

• 335

• 435

• 535

• 40

• 50

• 60

• 70

If the sum of the zeroes of a quadratic polynomial is 4 and the product of the zeroes is 3, then find the quadratic polynomial

• x² - 4x + 3

• x² + 4x + 3

• x² - 4x - 3

• x² + 4x - 3

If the roots of the quadratic equation 2x² - 5x - 3 = 0 are m and n, then find the value of m + n

• 5

• 4

• 3

• 2

If the HCF of two numbers is 8 and their LCM is 240, find the two numbers

• 32, 240

• 16, 120

• 24, 80

• 40, 60

A father's age is three times the sum of the ages of his two children. After 5 years his age will be two times the sum of their ages. Find the present age of father

• 45

• 50

• 44

• 55