Practice Question and Answer

Q: What approximate value will come in place of question mark (?) in the following question ?  (49.001)2  = ? 2168 0

  • 1
    2500
    Correct
    Wrong
  • 2
    2400
    Correct
    Wrong
  • 3
    2600
    Correct
    Wrong
  • 4
    2300
    Correct
    Wrong
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Answer : 2. "2400"
Explanation :

Answer: B) 2400 Explanation: Given (49.001)2  = ? => =~ 49 x 49 =~ 2401 =~ 2400

Q:

निम्न में से कौन इंदिरा गांधी नहर परियोजना का प्रस्तावित लाभार्थी जिला नहीं है?

2168 0

  • 1
    पाली
    Correct
    Wrong
  • 2
    सीकर
    Correct
    Wrong
  • 3
    नागौर
    Correct
    Wrong
  • 4
    जोधपुर
    Correct
    Wrong
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Answer : 1. "पाली"
Explanation :

1. इंदिरा गांधी नहर परियोजना से पाली को पीने का पानी नहीं मिलता है। 

2. यह नहर राजस्थान के सात जिलों से होकर गुजरती है जिसमे बाड़मेर, बीकानेर, चूरू, हनुमानगढ़, जैसलमेर, जोधपुर और श्रीगंगानगर  आदि शामिल हैं।  

Q:

समीकरण $$2x^2-7x+ 12=0 $$  के दो मूल α व β है, तो $$ {α \over β }   + {β \over α }=? $$

2168 1

  • 1
    24
    Correct
    Wrong
  • 2
    $$ {1 \over 24 }$$
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    $$ {1 \over 12 }$$
    Correct
    Wrong
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Answer : 2. "$$ {1 \over 24 }$$"

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Answer : 1. "A"

Q:

Improve the underlined part of the sentence. Choose ‘No improvement’ as an answer if the sentence is grammatically correct.

There has been a noticeable fall in the number of children dying from malnutrition.

2168 0

  • 1
    noticeable falling
    Correct
    Wrong
  • 2
    No improvement
    Correct
    Wrong
  • 3
    noticeably falling
    Correct
    Wrong
  • 4
    noticeably falls
    Correct
    Wrong
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Answer : 2. "No improvement"

Q:

एशियाई खेलों में स्वर्ण जीतने वाली पहली भारतीय महिला का नाम है ?

2168 0

  • 1
    कमलजीत संधू
    Correct
    Wrong
  • 2
    पी.टी. ऊषा
    Correct
    Wrong
  • 3
    रागिनी सिंह
    Correct
    Wrong
  • 4
    सिंधु
    Correct
    Wrong
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Answer : 1. "कमलजीत संधू"

Q:

नीचे दिए गए विकल्पों में से उस विकल्प को चुनिए जिसमें नीचे दी गई आकृति सन्निहित है।

2168 0

  • 1

    Correct
    Wrong
  • 2

    Correct
    Wrong
  • 3

    Correct
    Wrong
  • 4

    Correct
    Wrong
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Answer : 4. "

"

Q: How many six digit odd numbers can be formed from the digits 0, 2, 3, 5, 6, 7, 8, and 9 (repetition not allowed)? 2168 0

  • 1
    8640
    Correct
    Wrong
  • 2
    720
    Correct
    Wrong
  • 3
    3620
    Correct
    Wrong
  • 4
    4512
    Correct
    Wrong
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Answer : 1. "8640"
Explanation :

Answer: A) 8640 Explanation: Let the 6 digits of the required 6 digit number be abcdef Then, the number to be odd number the last digit must be odd digit i.e 3, 5, 7 or 9 The first digit cannot be ‘0’ => possible digits = 3, 5, 7, 2, 6, 8 Remaining 4 places can be of 6 x 5 x 4 x 3 ways This can be easily understood by Therefore, required number of ways = 6 x 6 x 5 x 4 x 3 x 4 = 36 x 20 x 12 = 720 x 12 = 8640 ways.

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