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The average (arithmetic mean) of 3^(30...

The average (arithmetic mean) of
`3^(30), 3^(60)` and `3^(90)` is

A

`3^60`

B

`3^117`

C

`3^27+3^57+3^87`

D

`3^29+3^59+3^89`

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CHAMPION PUBLICATION-2014 TIER-II PAPER(19)-EXERCISE
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  2. If the arithmetic mean of 3a and 4b is greater than 50, and a is twice...

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  3. The average (arithmetic mean) of 3^(30), 3^(60) and 3^(90) is

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  4. Pooja wants to sell a watch at aprofit of 20%. She bought it at 10% le...

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  5. A shopkeeper sold his goods at half the list price and thus lost 20%. ...

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  6. Two types of tea costing 180per kg and 280 per kg should be miced in t...

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  7. A profit of 12% is made when a mobile phone is sold at P and there is ...

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  8. A sells a cycle to B at a profit of 20% and B sells it to C at a loss ...

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  9. A man buys a toy for Rs. 25 and sells it for Rs. 30. What is his gain ...

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  10. From 1980-1990, the population of a country was increased by 20%. Fr...

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  11. A supply of juice lasts for 35 days. If its use is increased by 40% th...

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  12. A store offers a variety of discounts that range between 20% and 25% i...

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  13. If the ratio of cost price to selling price is 10:11,then the rate of ...

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  14. A boat takes half time in moving a certain distance downstream than up...

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  15. A tank has two pipes. The first pipe can fill it in 4 hours and the se...

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  16. A farmer travelled a distance of 61 km in 9 hours. He travelled partly...

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  17. A man rows upstrean 36 km and downstream 48 km taking 6 hours ea...

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  18. On a certain principal the compound interest compounded annually for t...

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  19. The sum of money, that will give Rs 1 as interest per day at the rate ...

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  20. When principal = Rs.S , rate of interest - 2r % p.a, then a person wi...

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