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The average age of 8 children of a famil...

The average age of 8 children of a family is 12 yr. If the age of 7 children are 12,18,14,11,9,13 and 5 yr, then the age of the 8th child will be

A

1yr

B

14 yr

C

13 yr

D

15 yr

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ARIHANT SSC-PROBLEM BASED ON AGES-FASK TRACK PRACTICE
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  3. The average age of 8 children of a family is 12 yr. If the age of 7 ch...

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  4. The ratio between the present ages of A and B is 4:5.If the ratio betw...

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  10. At present Meena is eight times her daughter's age 8 yr from now, the ...

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  11. Raman's present age is three times his daughter's and nine-thirteenth ...

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  12. The ages of Harsh and Sumit are 40yr and 60yr, respectively. How many ...

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  13. The average age of a man and his son is 27 yr . The ratio of their age...

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  14. The difference between the ages of Meena and Seema is 3 yr and the rat...

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  15. At present, the ratio of the ages of Maya and Chhaya is 6:5 and fiftee...

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  16. The ratio of the present age of Manoj to that of Wasim is 3:11 Wasim i...

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  17. Before 7 yr, the ratio of ages of A and B was 3:4 After 9 yr, ratio of...

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  19. The ratio between the present ages of Tarun and Varun is 3:7, respecti...

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