IIT JEE Practice Question and Answer
8Q: Fa Hien visited india during the reign of 1945 05b5cc666e4d2b4197774bf03
5b5cc666e4d2b4197774bf03- 1Harshavardhanafalse
- 2Chandragupta Mauryafalse
- 3Ashokafalse
- 4Chandragupta Vikramadityatrue
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Answer : 4. "Chandragupta Vikramaditya"
Explanation :
Answer: D) Chandragupta Vikramaditya Explanation: Fahien came to India during the reign of Chandragupta Vikramaditya.
Q: Important Time and Distance formulas with examples. 1945 05b5cc678e4d2b4197774c1b2
5b5cc678e4d2b4197774c1b2- Show AnswerHide Answer
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Answer :
Explanation :
1. How to find Speed(s) if distance(d) & time(t) is given: Speed (S) = Distance (D)Time (T) Ex: Find speed if a person travels 4 kms in 2 hrs? Speed = D/T = 4/2 = 2 kmph. 2. Similarly, we can find distance (d) if speed (s) & time (t) is given by Distance (D) = Speed (S) x Time (T) Ex : Find distance if a person with a speed of 2 kmph in 2 hrs? Distance D = S X T = 2 x 2 = 4 kms. 3. Similarly, we can find time (t) if speed (s) & distance (d) is given by Time (T) = Distance (D)Speed (S) Ex : Find in what time a person travels 4 kms with a speed of 2 kmph? Time T = D/S = 4/2 = 2 hrs. 4. How to convert km/hr into m/sec : P km/hr = P x 518 m/sec Ex : Convert 36 kmph into m/sec? 36 kmph = 36 x 5/18 = 10 m/sec 5. How to convert m/sec into km/hr : P m/sec = P x 185 kmph. Ex : Convert 10 m/sec into km/hr? 10 m/sec = 10 x 18/5 = 36 kmph. 6. If the ratio of the speeds of A and B is a:b, then the ratio of the times taken by them to cover the same distance is b : a. 7. Suppose a man covers a certain distance at x km/ hr and an equal distance at y km/hr . Then, the average speed during the whole journey is 2xyx+y km/hr.
Q: What is the difference in the shares of profit between P and Q in a joint business at the end of one year ? a. P Invested Rs. 80,000 and withdrew Rs. 20,000 after 6 months. b. Q joined four months after the start of business. c. Q's amount was 80% of P's amount during the last six months. 1945 05b5cc70be4d2b4197774f2dc
5b5cc70be4d2b4197774f2dc- 1Only afalse
- 2Only cfalse
- 3Both a & bfalse
- 4Data is not sufficienttrue
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Answer : 4. "Data is not sufficient"
Explanation :
Answer: D) Data is not sufficient Explanation: a. P's investment = (80000 x 6 + 60000 x 6) = 840000 for 1 month. b & c. Q's investment = 80% of Rs. 60000 for 8 months. = Rs.(48000 x 8) for 1 month = 384000 for 1 month P : Q = 840000 : 384000 = 35 : 16. But, the total profit is not given, so data is inadequate.
Q: What is true about personal financial planning? 1945 05b5cc699e4d2b4197774c733
5b5cc699e4d2b4197774c733- 1Personal financial planning is the process of creating and achieving financial goalstrue
- 2Our financial decisions decrease once we reach adulthoodfalse
- 3A family's resources are unlimitedfalse
- 4There are two means for achieving financial goals—you either need to increase your spending or reduce savingsfalse
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Answer : 1. "Personal financial planning is the process of creating and achieving financial goals"
Explanation :
Answer: A) Personal financial planning is the process of creating and achieving financial goals Explanation: Personal financial planning is the process of creating and achieving financial goals. True statements regarding personal financial planning: As we age, the number and complexity of the financial decisions that we make increases. There are two means for achieving financial goals—you either need to increase your savings or reduce spending. A family's resources are limited.
Q: Iron rusting, chemical or physical change 1944 05b5cc645e4d2b4197774bbcc
5b5cc645e4d2b4197774bbcc- 1Chemicaltrue
- 2Physicalfalse
- 3Both A & Bfalse
- 4None of the abovefalse
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Answer : 1. "Chemical"
Explanation :
Answer: A) Chemical Explanation: In rusting the Iron ore make a chemical reaction with the oxygen in the presence of water and environmental or atmospheric moisture to produce an Iron oxide. Iron oxide is otherwise called as rust. The rusting of iron is a chemical change because it is two substances reacting together to make a new substance.
Q: Diversification is important in investing because 1944 05b5cc69ae4d2b4197774c764
5b5cc69ae4d2b4197774c764- 1It ensures that you only make low-risk investments.false
- 2It helps you to balance your risk across different types of investments.true
- 3It helps you gain the highest rate of return despite any risks.false
- 4It increases your overall risk, which guarantees that you will make more money.false
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Answer : 2. "It helps you to balance your risk across different types of investments."
Explanation :
Answer: B) It helps you to balance your risk across different types of investments. Explanation:
Q: Telengana creation as in independent state is primarily the outcome of _____ ? 1943 05b5cc6d5e4d2b4197774e601
5b5cc6d5e4d2b4197774e601- 116th Lok Sabhafalse
- 215th Lok Sabhatrue
- 314th Lok Sabhafalse
- 413 Lok Sabhafalse
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Answer : 2. "15th Lok Sabha"
Explanation :
Answer: B) 15th Lok Sabha Explanation:
Q: With an average speed of 40 km/hr, a train reaches its destination in time. If it goes with an average speed of 35 km/hr, it is late by 15 minutes. Find the length of the total journey? 1942 05b5cc662e4d2b4197774be9c
5b5cc662e4d2b4197774be9c- 170 kmstrue
- 260 kmsfalse
- 345 kmsfalse
- 430 kmsfalse
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Answer : 1. "70 kms"
Explanation :
Answer: A) 70 kms Explanation: Let the time taken by train be 't' hrs. Then, 40t = 35t + 1560 40t = 35t + 35/4 t = 7/4 hrs Therefore, Required length of the total journey d = s x t = 40 x 7/4 = 70 kms.

