EST FGEI Solved Paper

1. 41. If you have an average score of x in five tests and you want to increase your average to y after taking one more test, what score do you need on that test?

(A) y – 6x
(B) 6y – 5x
(C) 5x – y
(D) 6y – 5x
Answer: (D) 6y – 5x

2. 42. A dice is rolled once. What is the probability of getting a number greater than 4?
(A) 1/6
(B) 1/2
(C) 1/3
(D) 1/4
Answer: (C) 1/3

3.  How many distinct arrangements can be made from the letters of the word “BOOK”?
(A) 12
(B) 24
(C) 4
(D) 6
Answer: (A) 12

4. 44. How far from a wall is a 10 m long ladder, leaning against a wall forming a 60° angle with it?
(A) 5 m
(B) 5√3 m
(C) 10 m
(D) 10/3 m
Answer: (A) 5 m

5. 45. What is the size of class interval (4-7)?
(A) 4
(B) 5
(C) 6
(D) 7
Answer:  Correct answer is 03

6. 46. The next number in series: 27, 32, 30, 35, 33, ___
(A) 36
(B) 37
(C) 31
(D) 38
Answer: (D) 38

7. 47. Solve it: 10 – 40 + 6 × 20 ÷ 4 = ___
(A) 0
(B) 1
(C) 2
(D) 3
Answer: Correct answer is -23.33

8. 48. Which number is self-multiplicative inverse?
(A) 0
(B) 1
(C) -2
(D) -1
Answer: (B) 1

9. 49. Mass of a block A is 2.35 kg less than the mass of block B. The total mass of the two blocks is 4 kg and 50 g. What is the mass of block B in kg?
(A) 6.4
(B) 3.2
(C) 2.15
(D) None of the above
Answer: (B) 3.2

50. Which of the following measures the central tendency?
(A) Variance
(B) Range
(C) Standard deviation
(D) Arithmetic mean
Answer: (D) Arithmetic mean