In how many ways 4 letters can be posted in two post boxes?
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A certain street has 500 buildings. A sign-maker is contracted to number the houses from 1 to 500. How many zeroes will he need?
How can 1000000000 be written as a product of two factors neither of them containing zeros
3 persons say these statements. A says either Democratic or liberal wins the elections. B says Democratic wins.C says neither democratic nor liberal wins the election.of these only one is wrong.who wins the election?
How many mod 3 counters are required to construct mod 9 counter.
There are 150 weights .Some are 1 kg weights and some are 2 kg weights. The sum of the weights is 260.is the number of 1kg weights?
If Rs.1260 is divided between between A, B and C in the ratio 2:3:4, what is C's share?
A farmer built a fence around his 17 cows, in a square shaped region. He used 27 fence poles on each side of the square. How many poles did he need altogether?
Everyday in his business a merchant had to weigh amounts from 1 kg to 121kgs, to the nearest kg.What are the minimum number of weight required and how heavy should they be?
If 1/4 of the time from midnight plus 1/2 of the time from now to midnight is the present time,then what is the present time ?
To 15 lts of water containing 20% alcohol, we add 5 lts of pure water. What is % alcohol.
A finishes a work in 12 days and B finishes same work in 14 days.If they work for a day alternately with A beginning, how many days will it take to complete the work?
a number of subsets of a set s is 128, then s has
If a car starts from A towards B with some velocity due to some problem in the engine after travelling 30km.If the car goes with 4/5 th of its actuval velocity the car reaches B 45min later to the actual time. If the car engine fails ofter travelling 45km, the car reaches the destination B 36min late to the actual time , what is the initial velocity of car and what is the distance between A and B in km ans) 20 &
1,40,00,000 pencils are put up straight. all the pencils are of length range 3 to 6 inches. 80% of the pencils have average of five inches. so the find out the total length spanned by the penciles.
What is the code formed by reversing the First and second letters, the third and fourth letters and son on of the string SIMULTANEOUSLY?