Practice Question and Answer
8 Q: If the velocity of a body is doubled its kinetic energy
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5dc22f856d7b0b6e7450e86e- 1Gets doubledfalse
- 2Becomes halffalse
- 3Does not changefalse
- 4Becomes 4 timestrue
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Answer : 4. "Becomes 4 times"
Q: The cost price of an article is Rs. 800. After allowing a discount of 10 %, a gain of 12.5 % is made. Then the marked price of the article is
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5dd631307780ee35515af307- 1Rs. 1,000true
- 2Rs.1,100false
- 3Rs. 1,200false
- 4Rs. 1,300false
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Answer : 1. "Rs. 1,000 "
Q: If x = 2 then the value of $$ x^3 + 27x^2 + 243x + 631$$ is:
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5ed62576ebc5ce408e2a9643- 11211false
- 21231false
- 31233true
- 41321false
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Answer : 3. "1233"
Q:Directions: In question four alternatives are given for the Idiom/Phrase underlined in the sentences. Choose the alternative which best expresses the meaning of the Idiom/Phrase and mark it is the Answer Sheet.
We visit the shopping mall off and on.
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5f1682588cf3201b6326c54d- 1oftentrue
- 2up and aboutfalse
- 3really and trulyfalse
- 4once upon a timefalse
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Answer : 1. "often"
Q: The population of a city is 415600.It increased by 25% in the first year and decreased by 30% in the second year.What is the population of the city at the end of second year? 2237 05b5cc783e4d2b41977750224
5b5cc783e4d2b41977750224- Show AnswerHide Answer
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Answer :
Explanation :
As per given data, P = 415600, R1= 25% incresed, R2 = 30% decreased Population of the city at the end of the second year= 363650.
Q: Rita bought a television set with 20% discount on the labeled price. She made a profit of Rs. 800 by selling it for Rs. 16,800. The labeled price of the set was
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5f22356cec5b045afeb353b7- 1Rs.20,800false
- 2Rs.24,000false
- 3Rs.18,000false
- 4Rs.20,000true
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Answer : 4. "Rs.20,000 "
Q:In these questions read each sentence to find out whether there is any error in it. If there is no error, the answer is (D).
I do love the apartment, but that’s (A)/ besides the mark because I don’t have enough (B)/money for a security deposit right now.(C)/ No Error (D)
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60c884b7e12dfd4e6c4e9923- 1(a)false
- 2(b)true
- 3(c)false
- 4(d)false
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Answer : 2. "(b)"
Q: Is Nitrogen an Inert gas? 2237 05b5cc6a7e4d2b4197774ce45
5b5cc6a7e4d2b4197774ce45- 1TRUEfalse
- 2FALSEtrue
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Answer : 2. "FALSE"
Explanation :
Answer: B) FALSE Explanation: Nitrogen is found as a diatomic molecule (N2) in nature. There is a triple bond between the two nitrogen atoms. The triple bond is pretty strong. Therefore, it needs a lot of energy to break those bonds and participate in a reaction. So nitrogen is commonly referred to as and used as an inert gas (high abundance & low cost.) However, it’s not truly inert like most noble gases. Nitrogen does react if the conditions are met. But those conditions are not exactly mild, but are not as extreme as for noble gases. It forms nitric oxide and nitrogen dioxide with oxygen, ammonia with hydrogen, and nitrogen sulfide with sulfur.