# Dell Average Questions

Question 1

Time: 00:00:00
`If a, b, c, d, e are five consecutive odd numbers, their average is`

5(a + 4)

5(a + 4)

abde/5

abde/5

5(a + b + c + d + e)

5(a + b + c + d + e)

a + 4

a + 4

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Question 2

Time: 00:00:00
```The average of 20 numbers is 15 and the average of first five is 12.
The average of the rest is```

16

16

15

15

14

14

13

13

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Question 3

Time: 00:00:00
```A man whose bowling average is 12.4, takes 5 wickets for 26 runs
and thereby decreases his average by 0.4. The number of wickets
taken by him before his last match is?```

82

82

83

83

84

84

85

85

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Question 4

Time: 00:00:00
```16 men went to a restaurant. Fifteen of them paid Rs.80 each
and the sixteenth man paid Rs.75 more than the average of all
the 16 men. What is the total bill?```

Rs 1360

Rs 1360

Rs 1350

Rs 1350

Rs 1440

Rs 1440

Rs 1680

Rs 1680

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Question 5

Time: 00:00:00
```A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230
and Rs. 6562 for 5 consecutive months. How much sale must he
have in the sixth month so that he gets an average sale of Rs. 6500?```

Rs. 4991

Rs. 4991

Rs. 5991

Rs. 5991

Rs. 6001

Rs. 6001

Rs. 6991

Rs. 6991

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Question 6

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.```

33

33

66

66

77

77

132

132

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Question 7

Time: 00:00:00
```The average weight of a class of 34 students is 45 kg.
If the weight of the teacher is included the average rises by 400 gm.
The weight of the teacher is?```

60

60

61

61

63

63

59

59

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Question 8

Time: 00:00:00
```Average age of 10 elephants increases by 8 years when the 2 tortoises
are included in place of 2 elephants of age 50 and 60.
Find the average age of tortoises?```

100

100

97

97

95

95

93

93

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Question 9

Time: 00:00:00
```In an exam out of 1500 students, 80% boys and 70% girls are passed.
If total pass percentage was 75%, how many boys appeared
in the exam and how many boys failed?```

150

150

160

160

170

170

180

180

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Question 10

Time: 00:00:00
`Find the average and sum of all even numbers from 200 to 500?`

300

300

350

350

320

320

330

330

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Question 11

Time: 00:00:00
```The average of 20 numbers is zero. Of them, at the most,
how many may be greater than zero ?```

0

0

-1

-1

1

1

none of these

none of these

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Question 12

Time: 00:00:00
```The average of 7 consecutive numbers is 20. The largest of
these numbers is :```

21

21

22

22

23

23

24

24

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