Question
55, 71, 119, 199, 311,
? Find the missing number in the given number seriesÂSolution
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
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
(1488.06 × 4.99) - 5677.95 + 1038.06 - 658.97 + (272.95 × 3.05) = ? × (36.95 × 4.02)
11.69% of 499.78 + (2.89 × 39.76) = ?Â
6401.23 × `1 3/4` - 352.87 × ? = 10443.789
What approximate value should come in the place of (?) in the following questions?
...
713.92 ÷ 14.14 * 69.8 = ? * 20.74 ÷ 8.9What approximate value will replace the question mark (?) in the following?
√57...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
600.11 ÷ 14.98 x 5.14 – 171.9 = √?Â
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
? = 25.08 + 11.99 × 24.07
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