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The average of nine numbers is 50. The a...

The average of nine numbers is 50. The average of the first five numbers is 54 and that of the last three numbers is 52. Then, the sixth number is

A

34

B

24

C

44

D

30

Text Solution

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The correct Answer is:
B
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ARIHANT SSC-AVERAGE -EXERCISE BASE LEVEL QUESTION
  1. Average weight of 19 men is 74kg and the average weight of 38 women is...

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  2. The average marks of 30 students are 45 but after checking , there are...

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  3. The average of nine numbers is 50. The average of the first five numbe...

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  4. The mean marks obtained by seven in a group is 226 . If the marks obta...

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  5. A cricketer has a mean score of 60 runs in 10 innings. Find out how ma...

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  6. The mean weight of 34 students of a school is 42kg . If the weight of ...

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  7. The average weight of 21 boys was recorded as 64 kg. If the weight of ...

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  8. The average age of 14 girls and their teacher's age is 15yr . If teach...

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  9. The average of six observations is 12. the average decreases by 1 when...

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  10. The average age of a class is 35 yr. 6 new students with an average ag...

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  11. The average age of 5 marks members of a family is 25yr . If the servan...

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  12. The average age of 4 members of a family is 25 yr . If head of the fam...

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  13. The average weight of 10 women is increased by 1 kg if 2 women of 42 k...

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  14. The average age of a committee of 11 persons increases by 2 yr when 3 ...

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  15. The average age of 30 women decreases by 3 months if a new person Priy...

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  16. Average of ten numbers is 7. If every number is multiplied by 12, what...

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  17. The average temperature of Delhi for four days in a particular month i...

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  18. The mean temperature of Monday to Wednesday was 37^@C and of Tuesday t...

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  19. The average of 11 numbers is 36. out of these 11 numbers , the average...

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  20. Roshan bought 5 pants at Rs25 each, 10 shirts at Rs50 each and 15 ties...

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