CAT प्रश्न और उत्तर का अभ्यास करें
8प्र: Two solutions have milk & water in the ratio 7:5 and 6:11. Find the proportion in which these two solutions should Be mixed so that the resulting solution has 1 part milk and 2 parts water ? 4347 05b5cc715e4d2b4197774f463
5b5cc715e4d2b4197774f463- 17 : 12false
- 28 : 13true
- 39 : 4false
- 42 : 5false
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उत्तर : 2. "8 : 13"
व्याख्या :
Answer: B) 8 : 13 Explanation: To get the solution that contains 1 part of milk and two parts of water,they must be mixed in the ratio as7x+6x/5y+11y = 1/226x = 16yx/y = 16/26x/y = 8/13
प्र: A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current ? 4341 05b5cc6e2e4d2b4197774ec52
5b5cc6e2e4d2b4197774ec52- 11 kmphfalse
- 23.2 kmphfalse
- 31.5 kmphtrue
- 42 kmphfalse
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उत्तर : 3. "1.5 kmph"
व्याख्या :
Answer: C) 1.5 kmph Explanation: 72 --- 9 ? ---- 1 => Down Stream = 8 45 ---- 9 ? ---- 1 => Up Stream = 5 Speed od current S = ? S = (8 - 5)/2 = 1.5 kmph.
प्र: Which observation proves that a cell is a eukaryote? 4338 05b5cc6a0e4d2b4197774ca60
5b5cc6a0e4d2b4197774ca60- 1It contains DNAfalse
- 2It contains ribosomesfalse
- 3It has a cell membranefalse
- 4It has DNA inside a nucleustrue
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उत्तर : 4. "It has DNA inside a nucleus"
व्याख्या :
Answer: D) It has DNA inside a nucleus Explanation: Eukaryotic cells all have a nucleus. Eukaryotes are organisms that are multicellular, although there are some examples of single cellular eukaryotes. So eukaryotic cells can be either cell with a nucleus or a eukaryotic organism's cell. The most important feature to judge whether it has nucleus membrane. And for other choices, they are the common features of eukaryote and prokaryote.
प्र: Which one of the following is not a true snake ? 4335 05b5cc6f8e4d2b4197774f018
5b5cc6f8e4d2b4197774f018- 1Blind snakefalse
- 2Glass snaketrue
- 3Sea snakefalse
- 4Tree snakefalse
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उत्तर : 2. "Glass snake"
व्याख्या :
Answer: B) Glass snake Explanation: Glass snake is a lizard.
प्र: Bureaucracy literally means a system of government by 4334 05b5cc697e4d2b4197774c5ca
5b5cc697e4d2b4197774c5ca- 1Elected representativefalse
- 2Officialstrue
- 3Group of landlordsfalse
- 4Nominated representativefalse
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उत्तर : 2. "Officials"
व्याख्या :
Answer: B) Officials Explanation: A bureaucracy is a way of administratively organizing large numbers of people who need to work together. The term bureaucracy literally means "rule by desks or offices". Organizations in the public and private sector, including universities and governments, rely on bureaucracies to function.
प्र: छाया क्षेत्र मौजूद है क्योंकि 4319 05b5cc607e4d2b4197774b55d
5b5cc607e4d2b4197774b55d- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
छाया क्षेत्र किसी दिए गए भूकंप से १०४ से १४० डिग्री की कोणीय दूरी से पृथ्वी का वह क्षेत्र है जिसे कोई सीधी पी तरंगें प्राप्त नहीं होती हैं। छाया क्षेत्र S तरंगों के तरल कोर द्वारा पूरी तरह से बंद होने और P तरंगों के तरल कोर द्वारा मुड़े (अपवर्तित) होने के परिणामस्वरूप होता है। शैडो ज़ोन दो प्रकार के होते हैं: एक P तरंगों के लिए और दूसरा S तरंगों के लिए। पी तरंग छाया 104-140 डिग्री, दोनों तरफ; S तरंग छाया एक तरफ के 105 से दूसरी तरफ 105 तक।
प्र: Transition : Change :: Immobility : ? 4315 05b5cc6a2e4d2b4197774cb56
5b5cc6a2e4d2b4197774cb56- 1Stillnesstrue
- 2Livelinessfalse
- 3Actionfalse
- 4Busynessfalse
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उत्तर : 1. "Stillness"
व्याख्या :
Answer: A) Stillness Explanation: Given Transition is to Change, and we know that Transition and change are Synonyms. Similarly, Immobility means not moving and synonym of immobility are motionlessness, stillness,... Hence, Transition is to change as immobility is to stillness.
प्र: The ratio of the incomes of Pavan and Amar is 4 : 3 and the ratio of their expenditures are 3:2. If each person saves Rs. 1889, then find the income of Pavan? 4310 05b5cc6bee4d2b4197774d992
5b5cc6bee4d2b4197774d992- 16548false
- 25667false
- 37556true
- 48457false
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उत्तर : 3. "7556"
व्याख्या :
Answer: C) 7556 Explanation: Let ratio of the incomes of Pavan and Amar be 4x and 3x and Ratio of their expenditures be 3y and 2y 4x - 3y = 1889 ......... I and 3x - 2y = 1889 ...........II I and II y = 1889 and x = 1889 Pavan's income = 7556

