IIT JEE Practice Question and Answer
8Q: Find the next number in the given number series? 11, 5.5, 10, 6.5, 9, ? 1997 05b5cc61ee4d2b4197774b753
5b5cc61ee4d2b4197774b753- 16.5false
- 27.5true
- 38.5false
- 410.5false
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Answer : 2. "7.5"
Explanation :
Answer: B) 7.5 Explanation: The given number series follows a pattern that 11 11 - 5.5 = 5.5 5.5 + 4.5 = 10 10 - 3.5 = 6.5 6.5 + 2.5 = 9 9 - 1.5 = 7.5 Hence, the next number in the given number series is 7.5.
Q: In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit ? 1996 05b5cc723e4d2b4197774f67c
5b5cc723e4d2b4197774f67c- 160%false
- 250%false
- 370%true
- 445%false
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Answer : 3. "70%"
Explanation :
Answer: C) 70% Explanation: Let C.P.= Rs. 100. Then, Profit = Rs. 320, S.P. = Rs. 420. New C.P. = 125% of Rs. 100 = Rs. 125New S.P. = Rs. 420. Profit = Rs. (420 - 125) = Rs. 295 Required percentage = (295/420) * 100 = 70%(approx)
Q: What type of macromolecule is DNA? 1996 05b5cc622e4d2b4197774b81b
5b5cc622e4d2b4197774b81b- 1Proteinsfalse
- 2Carbohydratesfalse
- 3Nucleic acidstrue
- 4All of the abovefalse
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Answer : 3. "Nucleic acids"
Explanation :
Answer: C) Nucleic acids Explanation: DNA stands for Deoxyribo nucleic acid. It is a nucleic acid made up of monomeric unit called Nucleotide. A nucleotide consist of - a) Sugar - Deoxyribose in DNA ( ribose in RNA) b) An organic base- Adenine, cytosine, guanine.
Q: Cancer is caused by 1996 05b5cc6e3e4d2b4197774ecac
5b5cc6e3e4d2b4197774ecac- 1Loss of immunity of cellsfalse
- 2Uncontrolled meiosisfalse
- 3Uncontrolled mitosistrue
- 4Rupturing of cellsfalse
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Answer : 3. "Uncontrolled mitosis"
Explanation :
Answer: C) Uncontrolled mitosis Explanation:
Q: Nitrogenous bases in DNA and RNA? 1995 05b5cc64ae4d2b4197774bc16
5b5cc64ae4d2b4197774bc16- 1Adeninefalse
- 2Cytosinefalse
- 3Guaninefalse
- 4All the abovetrue
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Answer : 4. "All the above"
Explanation :
Answer: D) All the above Explanation: Nitrogenous base: A molecule that contains nitrogen and has the chemical properties of a base. DNA and RNA :: The nitrogenous bases in DNA are Adenine (A), Guanine (G), Thymine (T), and Cytosine (C). Whereas the nitrogenous bases in RNA are the same, with one exception: Adenine (A), Guanine (G), Uracil (U), and Cytosine (C).
Q: A watch which gains uniformly is 2 minutes low at noon on Tuesday and is 4 min 48 sec fast at 2 p.m. on the following Tuesday. When was it correct ? 1995 05b5cc761e4d2b4197774fd0c
5b5cc761e4d2b4197774fd0c- 112 p.m. on Wednesdayfalse
- 22 p.m. on Thursdaytrue
- 33 p.m. on Thursdayfalse
- 42 p.m. on Wednesdayfalse
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Answer : 2. "2 p.m. on Thursday"
Explanation :
Answer: B) 2 p.m. on Thursday Explanation: Time from 12 p.m. on Tuesday to 2 p.m. on the following Tuesday = 7 days 2 hours.= 170 hours.The watch gains = (2 + 4 x 4/5) min= 34/5 min. in 170 hrs.Now, 34/5 min are gained in 170 hrs.Then, 2 min are gained in (170 x 5/34 x 2) hrs.Watch is correct after 2 days 2 hrs after 12 p.m. on Tuesday, i.e., it will be correct at 2 p.m. on Thursday.
Q: On a bank reconciliation, deposits in transit are 1994 05b5cc666e4d2b4197774bedf
5b5cc666e4d2b4197774bedf- 1added to the book balancefalse
- 2added to the bank balancetrue
- 3deducted from the book balancefalse
- 4None of the abovefalse
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Answer : 2. "added to the bank balance"
Explanation :
Answer: B) added to the bank balance Explanation: A deposit in transit is cash (currency, coins, checks, electronic transfers) that a company has received and is rightfully reported as Cash on its balance sheet, but does not appear on the bank statement until a later date.
Q: Which of these did progressives support? 1994 05b5cc636e4d2b4197774ba13
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Answer :
Explanation :
One of the thing that progressive support would be: Direct election of senators. The progressive wanted this so they could the candidate based on the person and not the party.Direct election of senators will make it easier for them to elect the person that represent their value for the position.

