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The average of 13 numbers is 48.5. The a...

The average of 13 numbers is 48.5. The average of the first five numbers is 56.4 and that of the last nine numbers is 45.6. What is the `5^(th)` number?

A

61.7

B

51.9

C

61.9

D

60.7

Text Solution

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The correct Answer is:
C
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SSC SELECTION POST-SSC PREVIOUS YEAR PAPER MATRIC LEVEL (14 NOV 2020 SHIFT 1)-Quantitative Aptitude
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  2. Pipes A and B can fill a tank in 18 minutes and 27 minutes, respective...

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  3. A can finish (2)/(5) of a task in 12 days and B can finish (2)/(3) of ...

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  4. In the expansion of (2x+y)^(3)-(2x-y)^(3), the coefficient of x^(2)y i...

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  5. A sum amounts to Rs 6,050 in 2 years and to Rs 6, 655 in 3 years at a ...

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  6. An article is sold for Rs 1, 683, after giving three successive discou...

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  7. The average of seven consecutive odd numbers (in increasing order) is ...

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  8. The sides of a triangular field are 56 m, 90 m and 106 m. The cost of ...

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  9. In a test consisting of 120 questions, a candidate correctly answer 60...

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  10. If a+b+c=7 and a^(3)+b^(3)+c^(3)-3abc=175, then what is the value of (...

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  11. The price of wheat, per kg, is increased by 17.5% and the quantity of ...

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  12. A sum of Rs 13,725 is divided between A, B, C and D such that the rati...

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  13. The average of 13 numbers is 48.5. The average of the first five numbe...

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  14. In a class of 45 students, the ratio of the number of boys and girls i...

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  15. The ratio of the present ages of A and B is 5:6. Eight years ago, the ...

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  16. Suresh loses 15% when he sells his computer for Rs 17,000. If he sells...

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  17. The cost price of an article A is 20% more than that of B, A is sold f...

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  18. The 10-digit number 90457416 xy is divisible by 9, and x-y=3. what is ...

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  19. A train of length 218 m is running at 60 km/h. In what time (in second...

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  20. The value of ((1)/(2)" of "1(1)/(2))-:(3(1)/(2)-1(1)/(4))" of "1(1)/(2...

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