Explain the Binomial theorem?
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a solution is prepared by mixing two solution with sprit 20% & 60%…In what ration they should be mixed to get the 50% sprit in resultant solution .
There are 19 horses in a stable. All but eight died. How many will be left in the stable?
A cubical rectangular bar has the dimensions with the ratio 5 : 4 : 3. Its volume is 7500. What is the surface area of the bar?
The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is?
If m/n=6/5 then 3m+2n=?
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In the word ORGANISATIONAL, if the first and second, third and forth, forth and fifth, fifth and sixth words are interchanged up to the last letter, what would be the tenth letter from right?
find the next number in the series 1,2,5,10,17,26
A person sold two articles for 80 /- each.with 20% profit on one article and 20% loss on another article, what is the loss / profit he will gain on both.
a man travels by walking 4 kmph to a certain distance followed by 3 kmph upstream a hill and returns at 6 kmph hill downstream and walks the same 4 kmph in flat and returns home. if the total time taken is 6 hrs wht is the total distance ? (a) 24 (b) 12 (c) 22.5 (d) none of these
When two unbiased dice are tossed simultaneously, the numbers that appear on the top surface of the two dice are a and b.What is the probability that a^b is a perfect square? (a^b=a to the power of b)
A job may be completed in 12 days, working for 8 hours a day if 20 men or 24 women or 40 boys perform the task. If a task four times as big as this is done for 5 hours a day for 12 days, how many men will be required to join 6 women and 2 boys to complete the task?
Total number of wheels of bicycles & 4 wheeled vechicles is 38. How many bicycles are there?