Name of Section:

Officer (Cash)-2018 [MCQ]

41. The area of a triangle with sides 3 cm, 5 cm and 6 cm is__

[Officer (Cash)-2018 [MCQ] : 2018]

1. 2√3cm^2

1

2. 3√14 cm^2

2

3. 2√14 cm^2

3

4. 2√5 cm^2

4
Answer
42. The pair of co-prime numbers is__

[Officer (Cash)-2018 [MCQ] : 2018]

1. 2, 3

1

2. 2, 4

2

3. 2, 6

3

4. 2, 110.

4
Answer
43. The value of k, if (x-1) is a factor of 4x^3 + 3x^2– 4x+k, is__

[Officer (Cash)-2018 [MCQ] : 2018]

1. 1

1

2. 2

2

3. -3

3

4. 3

4
Answer
44. There are 5 red and 3 black balls in a bag. Probability of drawing a black ball is__

[Officer (Cash)-2018 [MCQ] : 2018]

1. 5/8

1

2. ½

2

3. ⅜

3

4. 1/4

4
Answer
45. The total surface area of a hemisphere of radius r is__

[Officer (Cash)-2018 [MCQ] : 2018]

1. 4πr^2

1

2. πr^2

2

3. 2πr^2

3

4. 3πr^2

4
Answer

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