CAT प्रश्न और उत्तर का अभ्यास करें
8प्र: In a class there are certain no. of boys and girls. If 15 girls are absent then no. of boys will be twice that of girls. If 45 boys are absent then girls strength will be 5 times that of boys. Find number of boys actually present ? 2465 05b5cc715e4d2b4197774f41d
5b5cc715e4d2b4197774f41d- 140false
- 250true
- 355false
- 435false
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उत्तर : 2. "50"
व्याख्या :
Answer: B) 50 Explanation: 15 girls are absent => b = 2(g-15)...... eqn...(1) 45 boys are absent => g - 15 = 5(b-45).....eqn...(2) => g = 5(b-45) + 15 => b = 2((5(b-45)+15)-15) => b = 2(5b - 225 + 15 - 15) => b = 2(5b-225) => b = 10b - 450 => 9b = 450 => b = 50 so from equation(2) g - 15 = 5(b - 45) => g - 15 = 5(50-45) => g - 15 = 5(5) => g = 25 + 15 => g = 40 Therefore, the number of boys = 50 and girls = 40
प्र: Which of the following Valleys is known as "Paradise of Earth" ? 2465 05b5cc6d5e4d2b4197774e5ed
5b5cc6d5e4d2b4197774e5ed- 1Kullu Valleyfalse
- 2Doon Valleyfalse
- 3Kangra Valleyfalse
- 4Kashmir Valleytrue
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उत्तर : 4. "Kashmir Valley"
व्याख्या :
Answer: D) Kashmir Valley Explanation:
प्र: Demand side market failures occur when 2464 05b5cc6a6e4d2b4197774cdb6
5b5cc6a6e4d2b4197774cdb6- 1supply curves do not reflect the full cost of producing a good or servicesfalse
- 2demand curves do not reflect consumer’s full willingness to pay for goods or servicestrue
- 3government imposes tax on a good or a servicefalse
- 4a good or service is not produced because no one demands itfalse
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उत्तर : 2. "demand curves do not reflect consumer’s full willingness to pay for goods or services"
व्याख्या :
Answer: B) demand curves do not reflect consumer’s full willingness to pay for goods or services Explanation: Market failure arises because it is not possible for the market to correctly weight cost and benefits in a situation in which some of the cost is completely unaccounted. Demand-side market failures happen when demand curves do not reflect consumer’s full willingness to pay for goods or services. Supply-side market failures occur when supply curves do not reflect the full cost of producing a good or services.
प्र: In a test, minimum passing percentage for girls and boys is 35% and 40% respectively. A boy scored 483 marks and failed by 117 marks. What is the minimum passing marks for girls ? 2464 05b5cc72ce4d2b4197774f75a
5b5cc72ce4d2b4197774f75a- 1625false
- 2525true
- 3425false
- 4325false
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उत्तर : 2. "525"
व्याख्या :
Answer: B) 525 Explanation: Given 40% minimum passing marks for boys = 483 + 117 = 600=> 1% = 600/40 => 100% = 600 x 100/40 = 1500Minimum passing marks for girls = 35% of 1500 = 35 x 1500/100 = 525.
प्र: Express 6.72 % in ratio ? 2463 05b5cc6d9e4d2b4197774e839
5b5cc6d9e4d2b4197774e839- 165 : 124false
- 242 : 625true
- 321 : 125false
- 437 : 442false
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उत्तर : 2. "42 : 625"
व्याख्या :
Answer: B) 42 : 625 Explanation: 6.72/100 = 672/10000 = 42/625
प्र: Unresolved dissonance is a characteristic of 2462 05b5cc695e4d2b4197774c523
5b5cc695e4d2b4197774c523- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
When the tension is unresolved, we have unresolved dissonance. Unresolved dissonance is a characteristic of the baroque music. The general characteristics of Baroque music is movement, energy, and tension.
प्र: A Step-Up Transformer Increases 2462 05b5cc6b5e4d2b4197774d54e
5b5cc6b5e4d2b4197774d54e- 1Powerfalse
- 2Currentfalse
- 3Frequencyfalse
- 4Voltagetrue
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उत्तर : 4. "Voltage"
व्याख्या :
Answer: D) Voltage Explanation: A transformer that increases voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a Step-Up Transformer. Conversely, a transformer designed to do just the opposite is called a Step-Down Transformer.
प्र: Statement: Properly fed and starved monkeys were made to run through a network of paths designed as a puzzle. It was observed that the starved monkeys could not run faster. This proved that the people with lower intelligence in poor countries are a victim of malnutrition.Course of action:a. The effects of nutrition on the intelligence of the monkeys is parallel to those on human beings.b. Captive monkeys are more intelligent than wild monkeys. 2460 05b5cc761e4d2b4197774fd1b
5b5cc761e4d2b4197774fd1b- 1Only b followsfalse
- 2Only a followstrue
- 3Both a & b followsfalse
- 4Neither a nor b followsfalse
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उत्तर : 2. "Only a follows"
व्याख्या :
Answer: B) Only a follows Explanation: The proper nourishment will make the monkeys or human beings work properly. So, the course of action I follows. Course of action II does not follow as there is no information about captive or wild monkeys.

