IIT JEE Practice Question and Answer
8Q: Express 6.72 % in ratio ? 2228 05b5cc6d9e4d2b4197774e839
5b5cc6d9e4d2b4197774e839- 165 : 124false
- 242 : 625true
- 321 : 125false
- 437 : 442false
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Answer : 2. "42 : 625"
Explanation :
Answer: B) 42 : 625 Explanation: 6.72/100 = 672/10000 = 42/625
Q: The average age of a couple is 24 years when they were married five years ago but now the average age of the husband, wife and child is 20 years(the child was born during the interval). What is the present age of the child ? 2227 05b5cc6d6e4d2b4197774e665
5b5cc6d6e4d2b4197774e665- 12 yrstrue
- 24 yrsfalse
- 33 yrsfalse
- 45 yrsfalse
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Answer : 1. "2 yrs"
Explanation :
Answer: A) 2 yrs Explanation: 29 x 2 = 5820 x 3 = 60 ----------- 2 years Therefore, the age of child is 2 years.
Q: The sale price of an article including the sales tax is Rs. 616. The rate of sales tax is 10%. If the shopkeeper has made a profit of 12%, then the cost price of the article is : 2227 05b5cc6e7e4d2b4197774ed88
5b5cc6e7e4d2b4197774ed88- 1Rs. 560false
- 2Rs. 530false
- 3Rs. 500true
- 4Rs. 514false
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Answer : 3. "Rs. 500"
Explanation :
Answer: C) Rs. 500 Explanation: 110% of S.P. = Rs. 616 S.P. = (616 x 100)/110 = Rs. 560 C.P = (110 x 560)/112 = Rs. 500
Q: A calorie is another term for carbohydrate. 2226 05b5cc60de4d2b4197774b5d3
5b5cc60de4d2b4197774b5d3- 1TRUEfalse
- 2FALSEtrue
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Answer : 2. "FALSE"
Explanation :
Answer: B) FALSE Explanation: The given statement that a calorie is another term for carbohydrate is False. Carbohydrates are one of the main types of nutrients, and are most important source of energy. Where as Calorie is a measurement of how much heat energy is generated by the body processing food. Your digestive system changes carbohydrates into glucose(blood sugar). Your body uses this sugar for energy.
Q: “Neither a borrower nor a lender be, for loan oft loses both itself and friend.” What is the meaning of the given phrase? 2225 05b5cc626e4d2b4197774b86e
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Answer :
Explanation :
It is said by Lord Polonius. It means do not lend or borrow money from a friend, because if you do so, you will lose both your friend and your money. If you lend, he will avoid paying back, and if you borrow you will fall out of your savings, as you turn into a spendthrift, and face humiliation.
Q: Which of the following is not transferred by alveoli? 2224 05b5cc645e4d2b4197774bbd6
5b5cc645e4d2b4197774bbd6- 1Gasesfalse
- 2Oxygenfalse
- 3Bloodtrue
- 4Carbondioxidefalse
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Answer : 3. "Blood"
Explanation :
Answer: C) Blood Explanation: The main function of the pulmonary alveoli is to perform the transfer and exchange of gases. Here in the given options, blood is only one which is not gas. Hence, blood is not transferred by alveoli.
Q: Which statement fits the Frontier Ethic? 2223 15b5cc6b0e4d2b4197774d2bc
5b5cc6b0e4d2b4197774d2bc- 1Recycle plasticfalse
- 2Help those in needfalse
- 3He who has more toys winstrue
- 4Walk lightly on Earthfalse
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Answer : 3. "He who has more toys wins"
Explanation :
Answer: C) He who has more toys wins Explanation: Frontier Ethic is Spending Earth's assets at the cost of losing resource capital. A frontier ethic assumes that the earth has an unlimited supply of resources. It is the notion of disregarding the Earth for the benefit or gain of man. If resources run out in one area, more can be found elsewhere or alternatively human ingenuity will find substitutes. This attitude sees humans as masters who manage the planet. It is completely Anthropocentric.
Q: Three friends Rudra, Siva and Anvesh start to run around a circular stadium. They complete a revolution in 24, 36 and 30 seconds respectively. After how many minutes will they meet at the starting point ? 2223 05b5cc6c2e4d2b4197774dbb4
5b5cc6c2e4d2b4197774dbb4- 160false
- 2120false
- 3360false
- 46true
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Answer : 4. "6"
Explanation :
Answer: D) 6 Explanation: For this we have to find the LCM of 24, 36 and 30 LCM of 24, 36 and 30 = 360 sec 360/60 min = 6 minutes.

