Evaluate: (18 – 6) ÷ 3.
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The operation inside parentheses is completed first.
Then 12 ÷ 3 = 4.
Practice Pakistan questions with answers and explanations.
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The operation inside parentheses is completed first.
Then 12 ÷ 3 = 4.
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Concrete is primarily designed to carry compressive loads.
Its compressive strength is commonly measured using cube or cylinder tests.
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Concrete is strong in compression but weak in tension.
Steel reinforcement carries the tensile force after concrete cracks.
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Cement and water react to form hardened cement paste.
The paste binds fine and coarse aggregates into concrete.
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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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The digit 7 is in the thousands place.
Therefore, its place value is 7 × 1,000 = 7,000.
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A prime number has exactly two positive factors: 1 and itself.
The number 29 is not divisible by 2, 3, or 5.
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The common factors of 36 and 48 include 1, 2, 3, 4, 6, and 12.
The greatest of these is 12.
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Multiples of 8 are 8, 16, 24, and so on.
The first multiple also divisible by 12 is 24.