551. If U={1, 2, 3, 4, 5} and A={2, 4, 5} then A' should be
- A. {2, 4}
- B. {2, 3, 5}
- C. {1, 2, 3, 4, 5}
- D. {1, 3}
Check answer and explanation
Answer: {1, 3}
Explanation U={1,2,3,4,5} A={2,4,5} A ′ =U−A A ′ ={1,2,3,4,5}−{2,4,5} A ′ ={1,3} ND20-2-2023
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Answer: {1, 3}
Explanation U={1,2,3,4,5} A={2,4,5} A ′ =U−A A ′ ={1,2,3,4,5}−{2,4,5} A ′ ={1,3} ND20-2-2023
مسکرانا اور تعریف کرنا کیا ظاہر کرتا ہے؟
Answer: Reinforcement
Explanation Reinforcement means encouraging students through rewards or positive actions. Smiles and praise are examples of positive reinforcement. It increases students’ confidence and motivation to learn. It helps improve classroom behavior and performance . Last verified on 11-04-2026
کون سی بہت اہم مہارت ہے جس کی استاد کو حوصلہ افزائی کرنی چاہیے؟
Answer: Both A and C
Explanation Critical Thinking helps students analyze, evaluate, and solve problems independently. Performance Skills allow students to apply what they’ve learned in real-world or practical situations.
وائگوٹسکی کا قربت کی ترقی کا زون کس چیز کی طرف اشارہ کرتا ہے؟
Answer: Skills children can perform with guidance
Explanation Zone of Proximal Development (ZPD) – Difference between independent and assisted learning Scaffolding – Temporary support given by teacher/parent Learning improves through social interaction Vygotsky emphasized collaborative learning over individual learning Child can perform better tasks with guidance from more knowledgeable person Last verified on 10-04-2026
Answer: حيدر تون سڀاڻي شھر ويندين
Explanation ھيٺ ڏنل جملن مان حرف ندا کي ظاھر ڪندڙ جملو ڪھڙو آھي: حيدر تون سڀاڻي شھر ويندين
ایم ایس ورڈ میں کون سی گیلری میں "اسٹرائیکترو" آپشن ہے؟
Answer: Font Gallery
Explanation The Strikethrough option is found in the Font group on the Home tab in MS Word. It allows users to draw a line through selected text. Example :
درج ذیل میں سے کون سا مقدار رفتار کی تبدیلی کی شرح کو ظاہر کرتا ہے؟
Answer: Acceleration
Explanation The rate of change of velocity is called acceleration . It shows how quickly velocity changes with time. Velocity may change in speed or direction . Displacement is change in position. Momentum depends on mass and velocity. Last verified on 11-04-2026
اگر کمپیوٹرز کو ان کے سائز کے مطابق تقسیم کیا جائے تو کون سا آپشن درست ہے؟
Answer: Mainframe, Mini frame, Supercomputer, Microcomputer
Explanation Computers can be classified by size and capacity . Size-based classification includes micro, mini, mainframe, and supercomputers . These differ in speed, storage, and processing power. Last verified on 11-04-2026
سیانوبیکٹیریا _____ کے نام سے بھی جانا جاتا ہے؟
Answer: Blue green algae
Explanation Cyanobacteria are photosynthetic bacteria that contain chlorophyll and appear bluish-green in color. They are called blue-green algae , but they are prokaryotic and not true algae (which are eukaryotic ).
Answer: Called
Explanation Fatima Jinnah is called Madr-I-Millat means فاطمہ جناح کو مادر ملت کہا جاتا ہے This is a sentence of passive voice (present indefinite tense) Present Indefinite Tense Active Voice: Subject + Verb + Object Passive Voice: Object + is/am/are+ third form of a verb + by + subject.
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