Question
55, 71, 119, 199, 311,
? Find the missing number in the given number seriesSolution
Calculate the differences between consecutive terms: 71−55=16 119−71=48 199−119=80 311−199=112 The differences are 16,48,80,112. The second-order differences (differences of the differences) are constant: 48−16=32 80−48=32 112−80=32 Since the second-order differences are constant, the next difference is: 112+32=144 Adding this to the last term:311+144 = 455
More Missing Series Questions
- Simplify:
What is the value of √75 + √108?
82.3 × 644.7 × 723.4 × 815.85 = 72?
? = 65% of 40% of (20 × 250) − 200
- 60% of 180 – 30% of 60 = 15% of ?
11 × 25 + 12 × 15 + 14 × 20 + 15 = ?
What will come in the place of question mark (?) in the given expression?
(√676 of √144 ÷ 13) of 2400% = ?
36% of 250 + 26 ÷ 2 × ? = 207
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