Ten participants are participating in a competition. In how many ways can the first three prizes be won?
920
680
720
820
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#  Quiz 

1
Discuss

In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together
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2
Discuss

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least three men are in the committee. In how many ways can it be done?
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3
Discuss

There are 20 people among whom two are sisters. Find the number of ways in which we can arrange them around a circle so that there is exactly one person between the two sisters.
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4
Discuss

How many natural numbers can be made with digits 0, 7, 8 which are greater than 0 and less than a million?
Solution 
5
Discuss

What is the sum of all 4 digit numbers that can be formed by the digits 1, 2, 3, 4 each exactly once
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6
Discuss

Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is
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7
Discuss

One red flower, three white flowers, and two blue flowers are arranged in a line such that
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8
Discuss

How many words, with or without meaning, can be formed using all letters of the word EQUATION using each letter exactly once?
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9
Discuss

How many numbers can be formed from 1, 2, 3, 4, 5 (without repetition), when the digit at the unit’s place must be greater than that in the ten’s place?
Solution 
10
Discuss

In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?
Solution 
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