Practice FAST-NU Business questions with answers and explanations.
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The terms follow n(n + 1): 1×2, 2×3, 3×4, and so on.
The next term is 6×7 = 42.
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The operations alternate between multiplying by 3 and dividing by 2.
After 18, multiply by 3 to get 54.
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Every term is multiplied by 2.
Therefore, 56 × 2 = 112.
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The successive increases are 3, 4, 5, and 6.
The next increase is 7, so 28 + 7 = 35.
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The amounts subtracted are 9, 16, and 25, which are 3², 4², and 5².
Subtracting the next square, 6² = 36, gives 50 - 36 = 14.
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The terms are factorials: 1!, 2!, 3!, and 4!.
The next term is 5! = 120.
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Each term is obtained by doubling the previous term and adding 1.
Thus, 31 × 2 + 1 = 63.
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Each term is half of the preceding term.
Therefore, 8 ÷ 2 = 4.
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The sequence doubles at each step.
Thus, 88 × 2 = 176.
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Each term is twice the previous term plus 1.
So 31 × 2 + 1 = 63.
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The differences are 1, 2, 3, and 4.
The next difference is 5, producing 17.
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The operations alternate between adding 2 and multiplying by 2.
After 30, the next operation is ×2, giving 60.
