Practice Question and Answer

Q:

What is compound interest on a sum of Rs. 37,500 for $$ {1{1\over 3}}$$ years at a rate of 12 % per year. If the interest is compounded 8 monthly?

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  • 1
    Rs.6, 420
    Correct
    Wrong
  • 2
    Rs.6, 448
    Correct
    Wrong
  • 3
    Rs.6, 240
    Correct
    Wrong
  • 4
    Rs.6, 440
    Correct
    Wrong
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Answer : 3. "Rs.6, 240"

Q:

The observer hears a sound from the source which is moving away from the observer who is stationary. Determine the frequency of the sound

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  • 1
    It is halved
    Correct
    Wrong
  • 2
    It remains the same
    Correct
    Wrong
  • 3
    It reaches infinity
    Correct
    Wrong
  • 4
    It gets doubled
    Correct
    Wrong
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Answer : 1. "It is halved"
Explanation :

If the observer is moving away from the source ((Figure)), the observed frequency can be found: λs=vTo−voTovTs=(v−vo)Tov(1fs)=(v−vo)(1fo)fo=fs(v−vov).


Q:

In the following question, correct the equation by interchanging the two signs.
6 ÷ 17 x 51 + 6 – 12 = – 4

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  • 1
    x and ÷
    Correct
    Wrong
  • 2
    + and ÷
    Correct
    Wrong
  • 3
    + and –
    Correct
    Wrong
  • 4
    – and ÷
    Correct
    Wrong
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Answer : 2. "+ and ÷"

Q:

Find the cost in rupees for carpeting a room 65dm× 30 dm at Rs. 45 per sq.m

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  • 1
    87750
    Correct
    Wrong
  • 2
    877.50
    Correct
    Wrong
  • 3
    87.75
    Correct
    Wrong
  • 4
    8775
    Correct
    Wrong
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Answer : 2. "877.50"

Q:

Which state/UTs administration has launched the ANMOL app under the national health mission?

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  • 1
    Delhi
    Correct
    Wrong
  • 2
    Jammu & Kashmir
    Correct
    Wrong
  • 3
    Tamil Nadu
    Correct
    Wrong
  • 4
    Andhra Pradesh
    Correct
    Wrong
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Answer : 2. "Jammu & Kashmir"

Q:

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 * 5 * 10 * 2 * 8 * 44

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  • 1
    ÷, ×, +, –, =
    Correct
    Wrong
  • 2
    ×, ÷, –, +, =
    Correct
    Wrong
  • 3
    ÷, ×, –, +, =
    Correct
    Wrong
  • 4
    –, +, ÷, ×, =
    Correct
    Wrong
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Answer : 1. "÷, ×, +, –, = "

Q:

In which year, Rajasthan State Environment Policy was declared?

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  • 1
    2008
    Correct
    Wrong
  • 2
    2013
    Correct
    Wrong
  • 3
    2010
    Correct
    Wrong
  • 4
    2018
    Correct
    Wrong
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Answer : 3. "2010"
Explanation :

Rajasthan State Environment Policy was announced in 2010. Rajasthan Environment Policy 2010 identifies major environmental challenges and outlines strategies and actions to deal with them.

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