Without stopping the speed of the train is 135 kmph, with stopping the speed of the train is 90 kmph.Find the stop time of the train?
Stopping time = (135 – 90)/135 = 45/135 = 1/3 hrs = 20 min
Out of 6 men and 3 women a committee of 3 members is to be formed so that it has 2 men and 1 woman. In how many different ways can this be done?
The number of ways in which a committee of 3 ladies and 4 gentlemen can be appointed out of 8 ladies and 7 gentlemen If Mrs. X refuses to serve on a com...
From a group of 10 men and 7 women, in how many ways can 8 men and 4 women be selected?
How many no. of 4 digits can be formed with the digits 4, 8, 7 & 3 no digit being repeated.
...Which of the following is TRUE for “complementary event or ‘not event’”?
In how many ways can 7 boys and 2 girls can be seated in a row so that they are in alternate position.
Find the number of words that can be formed by using all letters of the word 'TANGLE', if it starts with letter G and end with letter A.
In a group of 9 boys and 6 girls, 5 students have to be selected. In how many ways it can be done so that only 2 boys are included.
How many numbers of five digits may be formed with the digits 7, 2, 0, 0, and 1?
In how many different ways can the letter of the word CHESTNUT is arranged so that vowels always occur together?
