(1) Calculate the number of unemployed people with a Bachelor's degree and then subtract the number of unemployed people with a Master's degree to arrive at the correct answer: There are 1-2 number series questions on the CCAT, one of them would be with letters and the other with numbers. Thus, the new average will be: 23+2 = 25. (Difference between sums of items) / (number of items) = 6/3 = 2 In this particular case, however, you can use a much shorter calculation: the difference between the new number of photos and old number of photos is 6.ĭivide this by the number of items to learn how much the average will increase: Answer (A) is the only one which is higher than 23, and is, therefore, the correct answer.Ĭalculate the sum of the new set of numbers, and then divide by the number of items. Since the number of photos in the second album increased (24+6=30), the average will increase as well. Answers (B), (C), and (D) are either lower than or identical to the old average. There are two ways to solve this problem: move on to the next place to the right of the decimal point and compare the values, until you find a difference. Notice! In case all or some of the answer-options have the same tenths/hundredths/thousandths values etc. For example:Īnswer-option (A) - 0.0015 can also be written as 0.00150, making it easier to compare with answer-option (E): Notice! Moving further to the right, the absence of digits is equivalent to writing 0. Therefore, answer-option (A) presents the smallest value. However, while answer-option (A) ends there, answer-option (E) also have a hundred thousandths value of 1, making it larger than (A):Īnswer-option (A) – 0.0015 – 0 hundred thousandthsĪnswer-option (E) – 0.00151 – 1 hundred thousandths Both have the same ten thousandths value of 5. You are left with answer-options (A) and (E). Therefore, move to the thousandths place and compare them:Īnswer-option (A) – 0.0015 – 1 thousandthsĪnswer-option (D) – 0.0051 – 5 thousandthsĪnswer-option (E) – 0.00151 – 1 thousandthsĪs can be seen, you can dismiss answer-option (D) since it has the 5 thousandths, while (A) and (E) has smaller thousandths value of 1. You are left with answer-options (A), (D) and (E). You are left with answer-options (A), (B), (D) and (E).Ĭomparing their hundredths values, you can immediately dismiss answer-option (B) since it has 1 hundredth while all other answer-options have 0 hundredths. You can immediately dismiss answer-option (C) since it has 1 tenth while all other answer-options have 0 tenths. Therefore, move to the right of the decimal point and compare their tenth values. Hundreds Hundredths -> Thousandths…Īs can be seen, all answer-options have 0 ones. Moving to the left of the decimal point, every number gets 10 times bigger. To the left of the decimal point is a whole number (e.g. The Decimal System enables writing numbers as large or as small as one wishes, using the decimal point.ĭigits can be placed to the left or right of a decimal point, presenting values greater than one or less than one.
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