Cognizant Averages- Quiz-1

Question 1

Time: 00:00:00

In the India-Australia one day match, due to rain, India needed 324 runs in 48 overs to win. In initial 10 overs, the average scoring rate was 6, but in next 10 overs it increased to 8.5. It then declined to 5.5 in next 10 overs and again rose to 7 in next 10 overs. To win the match now what average is needed?

3.24

6.75

8.7

5.6

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Question 2

Time: 00:00:00

The average age of a husband and his wife was 25 years when they have married 7 years ago. Now the average age of husband, wife, and son is 23 years. Find the age of son now.

3 year

5 year

4 year

6 year

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Question 3

Time: 00:00:00

Average age of 5 people is 42 years. Another group has 8 people who have average age of 81 years. When both groups are mixed what is average age of all people?

64

66

68

69

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Question 4

Time: 00:00:00

The batting average of a batsman for 20 innings is 35 and the difference b/w the runs of best inning and worst inning is 50. If these two innings are not included the average becomes 32 for 18 innings. The best score of the batsman is.

77

91

87

82

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Question 5

Time: 00:00:00

Which of the following exactly denotes the average price of all the goods together if, Ramesh buys ‘a’ number of goods of type ‘A’ at price of Rs. ‘E’ each, ‘b’ number of goods of type ‘B’ at price of Rs. ‘F’ each and ‘c’ number of goods of type ‘C’ at price of Rs. ‘G’ each?

(E+F+G) / (a+b+c)

(AE+BF+CG) / (a+b+c)

(aE+bF+cG) / (a+b+c)

(aA+bB+cC) / (a+b+c)

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Question 6

Time: 00:00:00

The average marks secured by 15 students are 70 and later it was found that one entry is wrong and 65 is written instead of 45. Find out the corrected average.

69.66

68.66

70

67.66

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Question 7

Time: 00:00:00

The average of three numbers is 77. The first number is twice the second and the second number is twice the third. Find the first number.

85

56

113

132

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Question 8

Time: 00:00:00

Average age of A and B is 30 years, that of B and C is 32 years and the average age of C and A is 34 years. The age of C is

56

45

36

48

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Question 9

Time: 00:00:00

3 boxes have some average weight. When one box which weighs 89 kg is replaced by another box, the average weight increases by 5 kg. How much the new box weighs?

104

107

109

108

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Question 10

Time: 00:00:00

The average salary of all the workers in the factory is 7000. The average salary of 9 mechanics is 5000 and for the rest of the workers, it is 4000. Find the total number of workers in the factory.

11

22

3

4

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