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What is the average of the first nine ...

What is the average of the first nine odd numbers ?

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The correct Answer is:
9
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S CHAND IIT JEE FOUNDATION-AVERAGE -UNIT TEST -3
  1. What is the average of the first nine odd numbers ?

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  2. Sunil gets 10% more marks than Akbar .What percentage of marks does...

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  3. A discount series of 10%,20%and40% is equal to a single discount of

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  4. A leak in the bottom of a tank can empty the full tank in 6 hours. An ...

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  5. A shokeeper earns a profit of 15% after selling a book at 20% dis...

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  6. A person invested part of ₹45000 at 4% and the rest at 6%. If his annu...

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  7. What would be the printed price of a watch purchased at Rs. 380 , ...

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  8. There are some coins and rings of either gold or silver in a box, 60% ...

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  9. A person gave 20% of his income to his elder son, 30% of the remaining...

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  10. Five years ago the average age of A ,\ B ,\ C ,\ D was 45 years....

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  11. Two number are in the ratio 3 : 5. If each number is increased by 10. ...

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  12. A person A sells a table cosing Rs . 2000 to a person B and earns a pr...

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  13. A student walks from his house at a speed of2 (1)/( 2) km per hour and...

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  14. A train passes a telegraph post in 8 seconds and a 264 m long brid...

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  15. Two taps can separately fill a cistern in 10 minutes and 15 minutes , ...

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  16. If 72 men can build a wall of 280 m length in 21 days, how many men co...

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  17. A' completes a work in 12 days 'B' completes the same work in 15 d...

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  18. Three candidates in a election received 1136 , 7636 and 11628 votes ...

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  19. Due to increase of 15% in the price of milk , a family reduces it...

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  20. X can do a piece of work in 8 days and Y in 12 days . When Z joined ...

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  21. A can contains a mixture of two liquids A and B in the ratio 7:5...

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