Question: 2 44 4 41 6 38 8 - Look carefully for the pattern, and then choose which pair of numbers comes next.
Options:
(A) 35 10
(B) 12 10
(C) 9 34
(D) 52 10
(E) 34 89
Ans: (D)
CoT: Here, there are two alternating patterns, one addition and one subtraction. The first starts with 2 and increases by 2; the second starts with 44 and decreases by 3.
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Question: The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
Options:
(A) 7
(B) 4
(C) 12
(D) 19
(E) 28
Ans: (D)
CoT: Average of 20 numbers = 0
Sum of 20 numbers = (0 * 20) = 0
It is quite possible that 19 of these numbers may be positive and if their sum is a, then 20th number is (-a).
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Question: A no. when divided by the sum of 555 and 445 gives 2times their difference as quotient & 30 as remainder. Find the no. is?
Options:
(A) 124345
(B) 234545
(C) 165767
(D) 144656
(E) 220030
Ans: (E)
CoT: (555 + 445) * 2 * 110 + 30 = 220000 + 30 = 220030
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