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Answer : 3. "इंजीनियर"

Q:

प्रतिवर्ष ‘विश्व ओजोन दिवस’ (World Ozone Day) कब मनाया जाता है?

2702 0

  • 1
    16 सितम्बर
    Correct
    Wrong
  • 2
    11 सितम्बर
    Correct
    Wrong
  • 3
    22 सितम्बर
    Correct
    Wrong
  • 4
    18 सितम्बर
    Correct
    Wrong
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Answer : 1. "16 सितम्बर "
Explanation :

हर साल 16 सितंबर को पूरी दुनिया में विश्व ओजोन दिवस मनाया जाता है. धरती के चारों ओर स्थित ओजोन परत के संरक्षण के प्रति लोगों को जागरूक करने के उद्देश्य से विश्व ओजोन दिवस मनाया जाता है। 


Q: Rajesh rows in still water with a speed of 4.5 kmph to go to a certain place and comes back. Find his average speed for the whole journey, if the river is flowing with a speed of 1.5 kmph? 2701 0

  • 1
    2 kmph
    Correct
    Wrong
  • 2
    4 kmph
    Correct
    Wrong
  • 3
    6 kmph
    Correct
    Wrong
  • 4
    8 kmph
    Correct
    Wrong
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Answer : 2. "4 kmph"
Explanation :

Answer: B) 4 kmph Explanation: Let the distance in one direction = k kms Speed in still water = 4.5 kmph Speed of river = 1.5 Hence, speed in upstream = 4.5 - 1.5 = 3 kmph Speed in downstream = 4.5 + 1.5 = 6 kmph Time taken by Rajesh to row upwards = k/3 hrs Time taken by Rajesh to row downwards = k/6 hrs Now, required Average speed =Total distanceTotal speed = 2kk3 + k6 = 2k x 186k + 3k = 4 kmph    Therefore, the average speed of the whole journey = 4kmph.

Q: A contractor undertook to complete a piece of work in 120 Days and employed 140 men upon it. At the end of 66 days only half of the work was done,so he put on 25 extra men. By how much time did he exceed the specific time ? 2701 0

  • 1
    2 days
    Correct
    Wrong
  • 2
    3 days
    Correct
    Wrong
  • 3
    4 days
    Correct
    Wrong
  • 4
    5 days
    Correct
    Wrong
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Answer : 1. "2 days"
Explanation :

Answer: A) 2 days Explanation: work done=total number of person x number of days;half of work done = 140 x 66;For half of remaining work 25 extra men are added.Therefore, total men for half work remaining = 140 + 25 = 165;Let 2nd half work will be completed in K days;140 x 66 = 165 x KK = 122;Hence, extra days => 122-120 = 2days.

Q:

24 चमगादड़ और 32 छड़ियों की कीमत 5600 रुपये है। 3 चमगादड़ और 4 छड़ियों की कीमत क्या है?

2700 0

  • 1
    1400 रुपये
    Correct
    Wrong
  • 2
    2800 रु
    Correct
    Wrong
  • 3
    700 रु
    Correct
    Wrong
  • 4
    डेटा अपर्याप्त
    Correct
    Wrong
  • 5
    इनमें से कोई नहीं
    Correct
    Wrong
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Answer : 3. "700 रु"

Q: What kind of tree can you carry in your hand? 2700 0

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Answer :
Explanation :

Palm tree.

Q:

Select the most appropriate word to fill in the blank.

This is the girl ______ is going to IIT, Delhi.

2700 0

  • 1
    who
    Correct
    Wrong
  • 2
    that
    Correct
    Wrong
  • 3
    which
    Correct
    Wrong
  • 4
    whom
    Correct
    Wrong
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Answer : 1. "who"

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