10th maths DPS 1,2,3,4,5,6,7,8,9

HCF(196, 38220) is ....

• 195

• 196

• 38220

• 1

Three sets of English, mathematics and science books containing 336, 240 and 96 books respectively have to be stacked in such a way that all books are stored subject wise and height of each stack is the same. How many stackes will be there ?

• 12

• 13

• 14

• 10

Zeros of polynomial x² +x - p(p+1) is ....

• - (p+1) and p

• p and $\frac{1}{p}$

• - p and - $\frac{1}{p}$

• p and 2p

On dividing a polynomial p(x) by a non zero polynomial q(x), let g(x) be quotient and r(x) be the remainder then p(x) = q(x) ⋅ g(x) + r(x), where

• r(x) = 0 always

• deg r(x) < deg g(x) always

• either r(x) = 0 or deg r(x) < deg g(x)

• r(x) = g(x)

If twice the son's age in years is added to father's age , the sum is 70. But , if twice the father's age is added to the son's age, the sum is 95. Find the age of father.

• 40 years

• 50 years

• 45 years

• 55 years

If

 $\frac{1}{x}+\frac{2}{y\ }=4\ and\ \frac{3}{y}-\frac{1}{x}=\ 11\$  then

• x = 2 , y = 3

• x = -2 , y = 3

• x =  $-\frac{1}{2}$   , y = 3

•  $x\ =\ -\frac{1}{2},\ y\ =\ \frac{1}{3}$  

Roots of 8x² - 22x - 21 are

• $\frac{7}{2}and\ -\frac{3}{4}$

• $\frac{2}{7\ }and\ -\frac{4}{3}$

• $-\frac{1}{7}\ and\ \frac{3}{4}$

• 3 and 22

value of k ..?, for which x = 1 is root of the equation x² + kx + 3 = 0

• -4

• -3

• 1

• 0

The 19th term of an AP is equal to 3 times its 6th term. If its 9th term is 19, then d = ?

• 2

• 4

• 6

• 8

Find the value of x for which (x+2), 2x , (2x+3) are three consecutive terms of an AP

• 3

• 1

• 2

• 4