Mathematics Test

Result

Mathematics Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

If grad of one line of equation x²+kxy+2y²=0 is double of other, h =

A
+3

B
+(3/2)

C
+2

D
+1
Question 2
1 / -0

In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?

A
63

B
45

C
126

D
90
Question 3
1 / -0

A purse contains 4 copper coins and 3 silver coins, the second purse contains 6 copper coins and 2 silver coins. A coin is taken out from any purse. The probability that it is a copper coin is

A
4/7

B
37/56

C
3/7

D
3/4
Question 4
1 / -0

A
16

B
20

C
24

D
28
Question 5
1 / -0

If the roots of the equation a/x - a + b/x - b = 1 are equal in magnitude and opposite in sign, then

A
a - b = 0

B
a + b = 1

C
a - b = 1

D
a + b = 0
Question 6
1 / -0

The fourth, seventh and tenth terms of a G.P. are p, q and r respectively, then

A
p² = q² + r²

B
p² = qr

C
q² = pr

D
r² = p² + q²
Question 7
1 / -0

Suppose that g (x) = 1 + √x and f (g(x)) = 3 + 2 √x + x, then f (x) is

A
1 + 2x²

B
2 + x²

C
1 + x

D
2 + x
Question 8
1 / -0

A

B

C
-1

D
Question 9
1 / -0

The coordinates of foot of perpendicular from (2,3) to the line x+y+1=0 are

A
(-6,5)

B
(5,6)

C
(-5,6)

D
(6,5)
Question 10
1 / -0

The equation of the tangent at the point P(t), where t is any parameter, to the parabola y²= 4ax is

A
yt=x+at²

B
y=xt+at²

C
y=tx

D
y=tx+(a/t)