Can you discover the missing number in this series

View Answer Discuss Throw the ball straight up in the air. Can you figure out the logic I used to decide the order of the following words: gun, shoe, spree, door, hive, kicks, heaven, gate, line, den View Answer Discuss Each word rhymes with its numeric position in the list. Can you discover the missing number in this series? The number in the middle of each triple is the same as the digits of either end's number when added together. The puzzle is if the shopkeeper can only place the weights in one side of the common balance.

For example if shopkeeper has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names the weights you will need to measure all weights from 1 to This is a fairly simple problem and very easy to prove also.

So for making kg we need up to 1, 2, 4, 8, 16, 32, 64, , and An express train takes 3 seconds to enter tunnel which is 1 km long. If it is traveling at km an hour, how long will it take to pass completely through the tunnel View Answer Discuss The train takes 30 seconds to travel 1 km, plus 3 seconds for the complete train to pass any point, making a total of 33 seconds.

What letter is next in this sequence? He grew a beard after one twelfth more. After one seventh more of his life, he married. The son lived exactly one half as long as his father, and salman died four years after his son. How many years did salman live? Therefore, salmna lived exactly 84 years. Charles walks over a railway-bridge. At the moment that he is just ten meters away from the middle of the bridge, he hears a train coming from behind.

Without hesitation, Charles rushes straight towards the train to get off the bridge. In this way, he misses the train by just four meters! If Charles would, however, have rushed exactly as fast in the other direction, the train would have hit him eight meters before the end of the bridge. What is the length of the railway-bridge? Explanation : Since we are given the mean, we need to find the sum of the numbers.

We know We can use this to find the sum by plugging in So our sum is There are 5 men and 4 women competing for an executive body consisting of : President Vice President Secretary Treasurer It is required that 2 women and 2 men must be selected How many ways the executive body can be formed?

Explanation : 2 men can be selected: 2 women can be selected out of 4 women: Finally, after the selection process, these men and women can fill the executive body in ways. Explanation : This is a sequence that features every other positive, odd integers.

Find the missing number:. Explanation : Find the missing number: To find the missing number, we need to find the pattern. If we look closely, our numbers are going up by the same number each time: 13 To check this, find the difference between neighboring numbers You get the idea.

So, to find the missing number, simply do the following:. Explanation : You need to evaluate the terms in the sequence to determine the pattern that is shown. Explanation : Notice that the world parabolic is given. This means that our parent function will be in the form: The terms resemble a pattern where the parent function is centered at , and the first term starts at and so forth.

The first number is: The second number is: The respective numbers are:. Explanation : Notice that the second and third terms in the set of numbers can be subtracted to determine the displacement of each number in the set. Subtract negative three from one.

Enclose the negative number with parentheses. Each number is spaced four units. Subtract four from negative three to find the first number. Add four to one to find the number for the second question mark. This number is also four units from nine. Explanation : Determine the distance between each number. Check the third and fourth number if this is also has the same displacement. Notice the fractions are in decreasing order. Reduce this fraction. The first term is: Subtract units from to obtain the fifth term.

The fifth term is: The correct answer is:. Copyright Notice. View Algebra Tutors. Marian Certified Tutor. Victoria Certified Tutor. Smith College, Bachelor in Arts, Spanish. Rebecca Certified Tutor. Report an issue with this question If you've found an issue with this question, please let us know. Do not fill in this field. Louis, MO Or fill out the form below:. Company name. Copyright holder you represent if other than yourself. I am the owner, or an agent authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.

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