CAT प्रश्न और उत्तर का अभ्यास करें

प्र: A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings ? 3906 0

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    34
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  • 2
    36
    सही
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  • 3
    35
    सही
    गलत
  • 4
    37
    सही
    गलत
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उत्तर : 4. "37"
व्याख्या :

Answer: D) 37 Explanation: 16x + 85 = 17(x + 3) x = 34 + 3 = 37

प्र: A 300m race is held between two players running 3m/s and 5m/s in swimming pool of 50m long. how many times the two player meet in opposite direction till the faster one completes the race ? 3904 0

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    3 times
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  • 2
    4 times
    सही
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  • 3
    5 times
    सही
    गलत
  • 4
    2 times
    सही
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उत्तर : 1. "3 times"
व्याख्या :

Answer: A) 3 times Explanation: Let us assume A is the faster and B is slower, A takes 10s to finish a lap of 50 m, B takes 17s(approx) to finish a lap of 50 m.So at 11th sec A starts his 2nd lap by the time B will be in between so that is the first time they will meet each other, at 21st sec A starts his 3rd lap by the time B will be coming back to finish his 2nd lap. So that is the second time they meet in opposite. Then at 31st sec A will start his 4th lap by the time B would not even finish 2nd lap as he take 34(2*17) sec to finish 2 laps. So at 35th sec B will start his 3rd lap by the time A will be coming back to finish his 4th lap in the half way so they will meet 3rd time. At 41st sec A will start its fifth lap by the time B will be going to finish 3rd lap in same direction. At 50th second both will complete A's 5th lap and B's 3rd lap. So they will start next lap(A's 6th and B's 4th) from the same point in same direction. And A will finish the race after completing 300m(6*50) total distance and then they wont meet opposite to each other. So totally they met 3 times in opposite direction.

प्र: Which major event in Indian history is also called as 'White Flowing River'? 3903 0

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    Partition of India
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  • 2
    Dandi March
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  • 3
    Operation Bluestar
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  • 4
    Quit India Movement
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उत्तर : 2. "Dandi March"
व्याख्या :

Answer: B) Dandi March Explanation: In Indian History, Dandi March or Salt Sathyagraha or The Salt March, also known as the Dandi Satyagraha, was an act of nonviolent civil disobedience in colonial India led by Mohandas Karamchand Gandhi to produce salt from the seawater.    It is also called as 'White Flowing River'.

प्र: Which among the following is a folk dance of India? 3899 0

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    Garba
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    Kathakali
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  • 3
    Manipuri
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  • 4
    Mohiniattam
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उत्तर : 1. "Garba"
व्याख्या :

Answer: A) Garba Explanation:

प्र: V-RAM का प्रयोग निम्न में से किसकी पहुँच के लिए किया जाता है ? 3896 3

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    प्रोग्राम
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    गलत
  • 2
    वीडियो और ग्राफिक्स
    सही
    गलत
  • 3
    टेक्स्ट और इमेज
    सही
    गलत
  • 4
    सभी
    सही
    गलत
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उत्तर : 2. "वीडियो और ग्राफिक्स"
व्याख्या :

Answer: B)वीडियो और ग्राफिक्स स्पष्टीकरण: वीआरएएम या (वीडियो रैम), किसी भी प्रकार की रैंडम एक्सेस मेमोरी (रैम) के संदर्भ में डायनामिक रैम (डीआरएएम) का एक दोहरे पोर्ट वाला संस्करण है, जिसका उपयोग ग्राफिक्स एडेप्टर में फ्रेमबफर को स्टोर करने के लिए किया जाता है।

प्र: If 6 engines consume 24 metric tonnes of coal, when each is working 8 hours day, how much coal will be required for 9 engines, each running 13hours a day, it being given that 2 engines of former type consume as much as 3 engines of latter type ? 3882 0

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    45 metric tonnes
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  • 2
    47 metric tonnes
    सही
    गलत
  • 3
    55 metric tonnes
    सही
    गलत
  • 4
    34 metric tonnes
    सही
    गलत
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उत्तर : 1. "45 metric tonnes"
व्याख्या :

Answer: A) 45 metric tonnes Explanation: 2 engines of former type for one hour consumes (2 x 24)/(6 x8) = 1 metric ton  i.e. 3 engines of latter type consumes 1 ton for one hour Hence 9 engines consumes 3 tons for one hour For 15 hours it is 15 x 3 = 45 metric tonnes.

प्र: Which pair of atoms has the highest electronegativity difference?   (Calcium's electronegativity is 1.0 Fluorine's electronegativity is 4.0 Hydrogen's electronegativity is 2.2 Sodium's electronegativity is 0.93) 3881 0

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    F-F
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  • 2
    Ca-F
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  • 3
    H-F
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  • 4
    Na-F
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उत्तर : 4. "Na-F"
व्याख्या :

Answer: D) Na-F Explanation: F-F = 4 - 4 = 0 Ca-F = 4 - 1 = 3.0 H-F = 4 - 2.2 = 1.8 Na-F = 4 - 0.93 = 3.07   Hence, the highest electronegativity difference is in Na-F.

प्र: In a row, Kumar is at 7th place from the left and Pawan is at 9th place from the right. When they interchange the positions Kumar becomes 11th from left. How many were seated in the row ? 3877 0

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    19
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  • 2
    20
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  • 3
    21
    सही
    गलत
  • 4
    27
    सही
    गलत
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उत्तर : 1. "19"
व्याख्या :

Answer: A) 19 Explanation: Initialy from left 7th = kumarfrom right 9th = pawanInterchange kumar = 11th from left, from right kumar = 9th;11+8 = 19;8 is 1,2,3,4,5,6,7(pawan),8,9,10,11(kumar),12,13,14,15,16,17,18,19;simply count the 9th place from right we will get total as 19.

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