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A geo stationary orbit is a circular orbit 35,786 kilometres above the Earth's equator and following the direction of the Earth's rotation.Communications satellitesandweather satellites are of ten given geostationary orbits,so that the satellite antennas that communicate with them do not have to move to track them,but can be pointed permanently at the position in the sky where they stay.
In how many different ways can the letter of the word CHESTNUT is arranged so that vowels always occur together?
In how many ways a Cricketer can make a Double century with fours and Sixes only?
What will be the number of permutations of n different things, taken r at a time, where repeatition is allowed?
Among a set of 4 black balls and 3 white balls, how many selections of 3 balls can be made such that at least 2 of them are black balls?
In how ways can the selection be made so that a particular member is always included?
...Determine the total number of ways to form a committee consisting of 10 members from a pool of 8 men and 7 women, ensuring the committee includes at lea...
How many no. of 4 digits can be formed with the digits 4, 8, 7 & 3 no digit being repeated.
...Find the number of words that can be formed by using all letters of the word 'PAINT', if order of vowels remains same.
In how many ways can the letters of the word TERRORISTS be arranged by taking 4 letters at a time?
History books are never together.
