Since, the word VERBAL has six letters, draw 6 blanks on your rough sheet.
Since the question asked for how many ways it can be rearranged, you must use Permutations. So, since there are totally 6 letters, the first blank can take all of the 6 letters.
Therefore, the first blank can be filled in 6 ways.
Now, once a letter is used up for a blank, it cannot be repeated. Therefore, the second blank can take only 5 letters.
Similarly, the subsequent blanks can be filled one after another.
However, this will only give you the ways in which you can form any 6 letter word (with or without meaning) using the letters of Verbal.
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Good Luck! Try the next questions!
If there is only one correct answer, in how many ways can a student answer the questions correctly?
The best technique is to visualize the question from what is given.
Since the question asks for the number of ways in which both questions can be answered correctly, you must calculate the answer like this:
Number of ways in which you can get the first question correct = 1 (only one correct answer)
Number of ways in which you can get the second question correct = 1 (only one correct answer)
Therefore, number of ways to answer question 1 AND 2 correctly = 1 + 1 = 2
Hence, the correct answer is 2.
Option A: 1
Remember, that the question asks for you to solve not just one but both questions correctly. Therefore, you must get question 1 & 2 right, which means 1 + 1 = 2. If the question asks for question 1 OR question 2, then you can calculate as 1 x 1 = 1.
If you had chosen this answer, it is possible that you may have confused the number of ways to answer a question with the number of ways to CORRECTLY answer a question.
The number of ways to answer a multiple choice question = 5
However, the number of correct answers is only 1.