STS 05 TO 15 SCREENING TEST 5 YEARS PAST PAPERS
STS 05 to
15 Screening Test 5 years Past Papers Click
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- 5/3
- -3/5
- 1/3
- None of these
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Explanation
The multiplication inverse (or reciprocal) of 3/5 is:
5/3
When you multiply a fraction by its reciprocal, the result is 1:
(3/5) × (5/3) = 1
The answer is 5/3.
- 9/72
- 1
- 27/64
- None of these
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Explanation
To solve (3/4)³:
(3/4)³ = (3/4) × (3/4) × (3/4)
= (3 × 3 × 3) / (4 × 4 × 4)
= 27 / 64
- 0.49
- 7
- 0.7
- None of these
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Explanation
√0.49 = √(49/100)
= √49 / √100
= 7/10
= 0.7
- 2, 6
- 2, 6, 12
- 2, 3
- None of these
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Explanation
The prime factors of 12 are 2 and 3.12 = 2 × 2 × 3.
- Geometry
- Trigonometry
- Set Theory
- None of these
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Explanation
De Morgan's laws describe relationships between unions and intersections of sets.
They are also fundamental in logic and Boolean algebra.
- Associative property
- Additive inverse
- Commutative property
- None of these
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Explanation
The given equation (a + b) + c = a + (b + c) is the standard form of the Associative Property of Addition.
It states that the grouping of numbers in an addition operation does not change the sum.
- -36
- 12
- 36
- None of these
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Explanation
Square of -6 means (-6) × (-6) = 36.
Negative × Negative = Positive.
- Natural number
- Irrational number
- Rational number
- None of these
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Explanation
Given a and b are integers and b ≠ 0:
a/b represents a Rational number.
A rational number is a number that can be expressed as the ratio of two integers, where the denominator is non-zero.
- 0
- -1
- 2/3
- None of these
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Explanation
Whole numbers are non-negative integers: 0, 1, 2, 3…
0 is a whole number.
- The teachers have taught maths in the class
- The teacher has taught maths in the class
- The teacher taught maths in the class
- None of these
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Explanation
The teacher taught maths in the class.
"Taught" is the simple past tense of "teach" and clearly indicates a completed action in the past.