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Question 1
A
x < 8 
B
x > -6 
C
x < 4 
D
x > -3 
Explanation.

No official Explanation yet!


Correct Option:
B

Question 2
A
x < 8 
B
x > -6 
C
x < 4 
D
x > -3 
Explanation.

No official Explanation yet!


Correct Option:
B

Question 3
A
65 
B
23 
C
17 
D
91 
Explanation.

No official Explanation yet!


Correct Option:
C

Question 4
A
\(\frac{5}{8}\) 
B
\(\frac{5}{16}\) 
C
\(\frac{1}{2}\) 
D
\(\frac{3}{8}\) 
Explanation.

Each multiplication of elements gives 16 results out of which the ones that are not greater than 6 are asterisked (*) and they are 8 in numbers

  Pr(product of x and y NOT > 6 ) = \(\frac{8}{16}\) = \(\frac{1}{2}\)


Correct Option:
D

Question 5
A
1000 
B
2000 
C
3000 
D
4000 
Explanation.

No official Explanation yet!


Correct Option:
B

Question 6
A
B
\(\frac{1}{8}\) 
C
1\(\frac{1}{8}\) 
D
\(\frac{2}{5}\) 
Explanation.

No official Explanation yet!


Correct Option:
B

Question 7
A
B
C
D
Explanation.

Profit (P) = 10\(_x\) − \(_x\)2

  Maximum profit can be achieved when the differential of profit with respect to number of bags(x) is 0

  i.e. \(\frac{dp}{dx}\) = 0

 \(\frac{dp}{dx}\) = 10 - 2x = 0

  10 = 2x

  Then x = \(\frac{10}{2}\) = 5

  Answer is C


Correct Option:
C

Question 8
A
10° 
B
28° 
C
36° 
D
40° 
Explanation.

The diagram shows angles at a point, the total angle at a point is 360

  x - 10 + 4x - 50 + 2x + 3x + 20 = 360

  10x - 40 = 360

  10x = 360 + 40

  10x = 400

  x = \(\frac{400}{10}\)

  x = 40


Correct Option:
D

Question 9
A
\(\frac{9}{13}\) 
B
\(\frac{7}{13}\) 
C
D
9\(\frac{3}{5}\) 
Explanation.

\(\frac{3}{4}\) t + \(\frac{1}{3}\) (21 - t) = 11

  Multiply through by the LCM of 4 and 3 which is 12

  12 x(\(\frac{3}{4}\) t) + 12 x (\(\frac{1}{3}\) (21 - t)) = (11 x 12)

  9t + 4(21 - t) = 132

  9t + 84 - 4t = 132

  5t + 84 = 132

  5t = 132 - 84 = 48

  t = \(\frac{48}{5}\)

  t = 9 \(\frac{3}{5}\)

  Answer is D


Correct Option:
D

Question 10
A
\(\frac{5}{6}\) 
B
\(\frac{7}{12}\) 
C
\(\frac{5}{12}\) 
D
\(\frac{1}{6}\) 
Explanation.

No official Explanation yet!


Correct Option:
C

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