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Have given. Speed of bus without stopping = 50 km/h Intermittent speed of bus = 40 km/n Let the Distance is 200 Km Time taken to cover 200 km at the speed of 50Km/h = 4 Hours Time taken to cover 200 km at the speed of 40Km/h = 5 Hours Time interval (Time Difference) = 1 hours Running time: Stopping time = 4:1 Part of stopping time = 
A box contains 2 blue, 3 black and 5 orange balls. In how many ways can 3 balls be drawn from the box, if at least 1 black ball is to be included in the...
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 many different ways can the letter of the word CHESTNUT is arranged so that vowels always occur together?
An examinee is required to answer the eight questions out of 16 questions which are divided into two groups each containing eight questions each and he...
A committee of 4 people is to be formed from a group of 10 individuals. If 2 specific individuals refuse to work together, how many different committees...
How many numbers of five digits may be formed with the digits 7, 2, 0, 0, and 1?
A total of 24 points are given on a plane, out of which 10 are collinear. How many distinct straight lines can be formed using these points?
Find the number of words formed by using all the letter of the word MEMBER, so that the vowels are always together.
...How many words can be formed with the letter of the word ‘NUMBER’ when alll vowels are never together?
How many different words can be formed with the letters of the word PRACTICE such that each of the word begin with E and ends with R?
