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RRB Group D Mix Test 71
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RRB Group D Mix Test 71
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  • Question 1/10
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    The plants which prepare their own food are called:

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    Autotrophs are organisms that can produce their own food from the substances available in their surroundings using light (photosynthesis) or chemical energy (chemosynthesis). Plants are the prime example of autotrophs, using photosynthesis. Organisms which feed on others are called heterotrophs.

     

  • Question 2/10
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    Nobel Prize winner Amartya Sen is known for his work in

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    Amartya Sen is an Indian economist. Sen has made contributions to welfare economics, social choice theory, economic and social justice, economic theories of famines, etc. He was awarded the Nobel Memorial Prize in Economic Sciences in 1998.

     

  • Question 3/10
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    Which one of the following is used in the preparation of antiseptic solution?

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    Iodine is usually used in an alcohol solution (called tincture of iodine) as a pre and postoperative antiseptic. Iodine antiseptics kill all principal pathogens and even spores, which are considered to be the most difficult form of microorganisms to be inactivated by disinfectants and antiseptics.

     

  • Question 4/10
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    A merchant marked cloth at Rs. 50/meter. He offers 2 successive discounts of 15% and 20%. The net price/meter is:

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  • Question 5/10
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    The salary of a person is reduced by 20% . To restore the previous salary, his present salary is to be increased by

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  • Question 6/10
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  • Question 7/10
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    In a ∆ABC, ∠A + ∠B = 75° and ∠B + ∠C = 140°, then ∠B is:

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  • Question 8/10
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  • Question 9/10
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  • Question 10/10
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    A man borrowed some money from a private organisation at 5% simple interest per annum. He lended this money to another person at 10% compound interest per annum, and made a profit of Rs. 26,410 in 4 years. The man borrowed

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