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the ratio of amount of work done by x-1 labours

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40 consecutive natural numbers are written,when one of the numbers is erased the average of remaining 39numbers is 45.find the possible value of erased number?
a)25 b)65 c)both 65&25

while entering the monthly sales data of year 2005,a sales figure of three digits was entered wrongly by reversing the order of the digits e.g. instead of 'abc',it was keyed in as'cba'.what can be the maximum monthly decrease in the average monthly sales of the year due to this error? average

if the six digit number 479xyz is exactly divisible by 7,11and 13 then value of x,y and z is

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Find the cube root of 287496. 287496

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Average weight of 8 gold coins is 20g per coin.Average weight of 12 silver coins is 35g per coin.what is the avergae weight per coin for 20 coins?

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