IIT JEE Practice Question and Answer
8Q: The probability that a bowler bowled a ball from a point will hit by the batsman is ¼. Three such balls are bowled simultaneously towards the batsman from that very point. What is the probability that the batsman will hit the ball ? 2057 05b5cc6c6e4d2b4197774de31
5b5cc6c6e4d2b4197774de31- 137/64true
- 227/56false
- 311/13false
- 49/8false
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Answer : 1. "37/64"
Explanation :
Answer: A) 37/64 Explanation: Probability of not hitting the ball = 1- 1/4 =Then, the probability that the batsman will hit the ball =
Q: Showing a man a woman said, "His brother's father is the only son of my grandfather". How is the woman related to the man? 2053 05b5cc6bee4d2b4197774d96a
5b5cc6bee4d2b4197774d96a- 1Sistertrue
- 2Auntfalse
- 3Sister-in-lawfalse
- 4Daughter-in-lawfalse
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Answer : 1. "Sister"
Explanation :
Answer: A) Sister Explanation: The man's brother's father means his father is the only son of woman's grandfather => grandfather to the man also => Woman and the man are brother and sisters.
Q: Find the next number in the given number series? 35, 36, 55, 111, ? 2053 05b5cc62ae4d2b4197774b8a5
5b5cc62ae4d2b4197774b8a5- 1278.5true
- 2264.5false
- 3212.5false
- 4202false
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Answer : 1. "278.5"
Explanation :
Answer: A) 278.5 Explanation: The given number series is 35, 36, 55, 111, ? 35 35 x 1 + 1 = 36 36 x 1.5 + 1 = 55 55 x 2 + 1 = 111 111 x 2.5 + 1 = 278.5 Hence, the next number in the given number series is 278.5.
Q: If 'A $ B' means 'A is brother of B', 'A @ B' means 'A is wife of B', 'A #B' means ' A is daughter of B' and 'A * B' means 'A is father of B', then which of the following expressions indicates the relationship 'U is father-in-law of P ? 2053 05b5cc715e4d2b4197774f468
5b5cc715e4d2b4197774f468- 1P@Q$T#U*Wtrue
- 2P@Q$T#W*Ufalse
- 3P@W$Q*T#Ufalse
- 4P@Q$W*T#Ufalse
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Answer : 1. "P@Q$T#U*W"
Explanation :
Answer: A) P@Q$T#U*W Explanation: Here the P is the wife of Q who is brother of T who is daughter of U. That implies P is wife of U's son Q => U is father-in-law of P.
Q: In MS-Word, for what does ruler help? 2052 15b5cc69ce4d2b4197774c846
5b5cc69ce4d2b4197774c846- 1to set indentsfalse
- 2to change page marginsfalse
- 3to set tabsfalse
- 4All the abovetrue
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Answer : 4. "All the above"
Explanation :
Answer: D) All the above Explanation: In MS-Word, the Ruler function helps align the text, graphic, tables or other elements in your document.
Q: A man traveled from the village to the post-office at the rate of 25 kmph and walked back at the rate of 4 kmph. If the whole journey took 5 hours 48 minutes, find the distance of the post-office from the village ? 2052 05b5cc74ae4d2b4197774facc
5b5cc74ae4d2b4197774facc- 140 kmfalse
- 230 kmfalse
- 320 kmtrue
- 410 kmfalse
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Answer : 3. "20 km"
Explanation :
Answer: C) 20 km Explanation: Average speed = 2aba+b, here a=25 b=4 = 2 x 25 x 4/(25+4) = 200/29 km/hr. Distance covered in 5 hours 48 minutes = Speed x time = (200/29)x (29/5) Distance covered in 5 hours 48 minutes = 40kms. Distance of the post office from the village = (40/2) = 20 km.
Q: In a Plane there are 37 straight lines, of which 13 pass through the point A and 11 pass through the point B. Besides, no three lines pass through one point, no lines passes through both points A and B , and no two are parallel. Find the number of points of intersection of the straight lines. 2051 05b5cc7d1e4d2b41977751281
5b5cc7d1e4d2b41977751281- 1525false
- 2535true
- 3545false
- 4555false
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Answer : 2. "535"
Explanation :
Answer: B) 535 Explanation: The number of points of intersection of 37 lines is C237. But 13 straight lines out of the given 37 straight lines pass through the same point A. Therefore instead of getting C213 points, we get only one point A. Similarly 11 straight lines out of the given 37 straight lines intersect at point B. Therefore instead of getting C211 points, we get only one point B. Hence the number of intersection points of the lines is C237-C213-C211 +2 = 535
Q: The Largest Component of National Income is 2051 05b5cc6b1e4d2b4197774d323
5b5cc6b1e4d2b4197774d323- 1Proprietors Incomefalse
- 2Compensation of Employeestrue
- 3Corporate Profitsfalse
- 4Rental Incomefalse
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Answer : 2. "Compensation of Employees"
Explanation :
Answer: B) Compensation of Employees Explanation: National Income is the total income value of the goods and services produced by the residents of a country, usually during the period of one year. National Income is categorized into 6 components. They are : 1. Compensation of Employees (Wages and Benefits) 2. Corporate Profits 3. Rental Income 4. Proprietors Income (Income of unincorporated business) 5. Net Interest The Largest Component of National Income is Compensation of Employees. The Largest component of National Income in India is Service Sector.