CAT प्रश्न और उत्तर का अभ्यास करें

प्र: What profit percent is made by selling an article at a certain price, if by selling at 2/3rd of that price, there would be a loss of 20%   ? 2392 0

  • 1
    30 %
    सही
    गलत
  • 2
    25 %
    सही
    गलत
  • 3
    15 %
    सही
    गलत
  • 4
    20 %
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 4. "20 %"
व्याख्या :

Answer: D) 20 % Explanation: SP2 = 2/3 SP1CP = 100SP2 = 802/3 SP1 = 80 SP1 = 120100 --- 20   => 20%

प्र: If sum of upstream and downstream speed of a boat is 82 kmph, and the boat travels 105 km. upstream in 3 hr, Find the time taken by boat to cover 126 km downstream. 2391 0

  • 1
    2.8 hrs
    सही
    गलत
  • 2
    2.7 hrs
    सही
    गलत
  • 3
    2.6 hrs
    सही
    गलत
  • 4
    2.5 hrs
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "2.7 hrs"
व्याख्या :

Answer: B) 2.7 hrs Explanation: Let Speed of boat in still water = b Let Speed of still water = w Then we know that, Speed of Upstream = U = boat - water Speed of Downstream = D = boat + water Given, U + D = 82 b - w + b + w = 82 2b = 82 => b = 41 kmph From the given data, 41 - w = 105/3 = 35 w = 6 kmph Now, b + w = 126/t => 41 + 6 = 126/t => t = 126/47  = 2.68 hrs.

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर :
व्याख्या :

Answer 1) dRashmi is the daughter of Amit who is son of Veena.Therefore, Veena is Grand mother of Rashmi. Answer 2) bVandana's sister is Vishal's brother's wife.Therfore, Vishal is Vandana's Brother-in-law. Answer 3) cYashwanth is son of Avinash who is the son of Rohit Agarwal.Therefore, surname of Yashwanth is Agarwal.

प्र: Which of these was an action of Farmers Alliances? 2390 0

  • 1
    Involving farmers in political action
    सही
    गलत
  • 2
    Encouraging farmers to give up farming
    सही
    गलत
  • 3
    Helping farmers fight for better prices
    सही
    गलत
  • 4
    Both A & C
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 4. "Both A & C"
व्याख्या :

Answer: D) Both A & C Explanation: The Farmers Alliance was an organized agrarian economic movement among American farmers that developed and flourished in 1875.   One of the goals of the organization was to end the adverse effects of the crop-lien system on farmers in the period following the American Civil War.   The Farmer's Alliance moved into politics in the early 1890s under the banner of the People's Party, commonly known as the "Populists."

प्र: The term aerotolerant anaerobe refers to an organism that 2390 0

  • 1
    uses oxygen or grows without oxygen.
    सही
    गलत
  • 2
    requires more oxygen than is present in air.
    सही
    गलत
  • 3
    does not use oxygen but tolerates it.
    सही
    गलत
  • 4
    requires less oxygen than is present in air.
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 3. "does not use oxygen but tolerates it."
व्याख्या :

Answer: C) does not use oxygen but tolerates it. Explanation:

प्र: Who was appointed as NASSCOM chairman in April 2017 ? 2389 0

  • 1
    C P. Gurnani
    सही
    गलत
  • 2
    Raman Roy
    सही
    गलत
  • 3
    Smt. Singha
    सही
    गलत
  • 4
    None
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "Raman Roy"
व्याख्या :

Answer: B) Raman Roy Explanation: The National Association of Software and Services Companies (Nasscom) appointed Raman Roy (Managing Director of Quatrro Global Services) as its chairman for 2017-2018.  Rishad Premji (Chief Strategy Officer (CSO), Wipro Limited) has been appointed Vice Chairman. Raman Roy has replaced Mr. CP Gurnani.

प्र: 0 divided by 0 2389 0

  • 1
    0
    सही
    गलत
  • 2
    1
    सही
    गलत
  • 3
    Undefined
    सही
    गलत
  • 4
    Indeterminate
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 4. "Indeterminate"
व्याख्या :

Answer: D) Indeterminate Explanation: Indeterminate are those,which mathematics can’t determine. Because we don’t actually know which one is the exact answer for this due to having lots of results for this. Explanation:: Let us think by this analogy that, 0 / 1 = 0 0 / 2 = 0 ………… ……….. we can say 0 / n = 0 from this we can write, 0/0 = 0 Again, another analogy,(from limiting concept of 1/0 = infinity) 1 / 0 = +∞ or -∞ 2 /0 = +∞ or -∞ ……… .……. we can say 0 / 0 = ∞ Again, another analogy, 1 / 1 = 1 2/2 = 1 .…….. ……….. we can say, 0/0 = 1 Now, you see it’s confusing. Every analog is mathematically correct then which one is the right answer for 0/0.  Therefore Mathematics can’t determine this fact. So, 0/0 is indeterminate.

प्र: Planets do not twinkle because 2389 0

  • 1
    Far distance
    सही
    गलत
  • 2
    Total internal reflection
    सही
    गलत
  • 3
    Refraction
    सही
    गलत
  • 4
    Near distance
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 4. "Near distance"
व्याख्या :

Answer: D) Near distance Explanation: Stars twinkle because they’re so far away from Earth that when light from the stars passes through the atmosphere, it is bent countless times due to refraction, making it look like as if they were blinking. The sun and other planets doesn’t twinkle because it’s too close to Earth compared to other stars.

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई