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Question

What should come in place of question mark (?) in the following number series?

22           62           178         522         1550       ?

A 5240 Correct Answer Incorrect Answer
B 4630 Correct Answer Incorrect Answer
C 3275 Correct Answer Incorrect Answer
D 3050 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

22 × 3 – 4 = 66 – 4 = 62 62 × 3 – 8 = 186 – 8 = 178 178 × 3 – 12 = 534 – 12 = 522 522 × 3 – 16 = 1566 – 16 = 1550 1550 × 3 – 20 = 4560 – 20 = 4630

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