Multiple choice

Find the missing term in the following number series. 175, 185, 205, 235, 275, ?

  1. 315

  2. 320

  3. 325

  4. 330

  5. None of these
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C Correct answer
Explanation

The differences between consecutive terms are: 185-175=10, 205-185=20, 235-205=30, 275-235=40. The next difference should be 50. 275 + 50 = 325.

AI explanation

The differences between the consecutive terms increase by 5 each time. The initial differences are 10 (185 minus 175), 20 (205 minus 185), 30 (235 minus 205), and 40 (275 minus 235). The next difference in the pattern is 50, which must be added to the last known term of 275. Adding 275 and 50 gives 325. The result is 325.

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