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There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?

There are two identical red, two identical black, and two identical white balls.In how many different ways can the balls be placed in the cells (Each cell to contain one ball) shown above such that balls of the same colour do not occupy any two consecutive cells?

A two number committee comprising of one male and the female number is to be constituted out of five male and 3 females. Amongst the females, Ms. A refused to be number committee in which Mr.B is taken as the number of how many different ways can the committee be constituted?

In how many different ways can the letters of the word „MATHEMATICS‟ be arranged so that the vowels always come together?

A person ordered 5 pairs of black socks and some pairs of brown socks. The price of a black pair was thrice that of a brown pair while preparing the bill the bill clerk inter-changed the number of black and brown pairs by mistake which increased the bill by 100% what was the number of pair of brown socks in the original order?

A question paper consists of five problems, each problem having three internal choices. In how many ways can a candidate attempt one or more problems?

The cost of 10 kg of apples is equal to the cost of 24 kg of rice. The cost of 6 kg of flour equals the cost of 2 kg of rice. The cost of each kg of flour is Rs.20.50. Find the total cost of 4 kg of apples, 3 kg of rice and 5 kg of flour?

In how many ways can three consonants and two vowels be selected from the letters of the word “TRIANGLE”?

How many columns can you insert in a word document in maximum?

The thinnest bone of the human body is:

A selection is to be made for one post of principal and two posts of vice-principal amongst the six candidates called for the interview only two are eligible for the post of principal while they all are eligible for the post of vice-principal. The number of possible combinations of selectees is-----------?

How many four digit even numbers can be formed using the digits {2, 3, 5, 1, 7, 9}

What is the default font size of a new Word document based on Normal template in Word 2003?

In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?

A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and a shirt?

Using all the letters of the word “NOKIA”, how many words can be formed, which begin with N and end with A?

What does Ctrl + = key effect?

The largest bone in the human body is:

Vegetable ghee is manufactured by the process of:

The number of arrangements that can be made with the letters of the word MEADOWS so that the vowels occupy the even places?