The water in a river flow at the rate of 4 km per hour if the width and depth of the river are 8 M and 4 m respectively then how much water will enter the sea in 15 minutes?
If water flows at 4km/h. So, in 15 minutes it travels =1km So, volume of water entering the sea in 15 minutes=8×4×1000 =32000m3
Among a set of 6 black balls and 3 white balls, how many selections of 5 balls can be made such that at least 3 of them are black balls?
In how many different ways can the letters of the word 'REMAINING' be arranged?
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 letters of the word ‘NATURE’ be arranged in such a way that the vowels occupy only the odd positions?
In how many different ways can the letters of the word “INCORPORATION” be arranged so that the vowels comes together?
In how many different ways can the letters of the word ‘VARIOUS’ be arranged in such a way that the vowels occupy only the odd positions?
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In how many different ways can 6 teachers and 5 students be seated in a row so that they sit alternately?
In how many different ways can the letters of the word “MONDAY” be arranged in such a way that the vowels always come together?
