With just six weights and a balance scale, you can weigh any unit number of kgs from 1 to 364. What could be the six weights?

Amit Singh

• Sep 2nd, 2011

The six weights will be 1 kg, 3kg,9kg, 27kg, 81 kg, and 243kg.
for instance to weigh 2kg= 3kg-1kg...and so on for all the weights

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There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles?

niyaj

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• Nov 28th, 2010

3 hours

surekhagrandhi

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• Nov 19th, 2010

 3hrs  1-h/6 = (1-h/4)2

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Find the base where 310 can be written as 1234?

lavanya.rjs

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• Jan 4th, 2011

Base 6.       

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The temperature at Bangalore is given by the function: -t2/6+4t+12 where t is the elapsed time since midnight. What is the percentage rise (or fall) in temperature between 5.00PM and 8.00PM?

raufkatoo

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• Jan 11th, 2011

39%This is done by differenciating given function, because rate of change of any function is given by differencation of the given function.....

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