IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: A bill presented in Parliament becomes an Act after - 1628 05b5cc6d3e4d2b4197774e4e6
5b5cc6d3e4d2b4197774e4e6- 1The Prime Minister has signed itfalse
- 2The Supreme Court has declared it to be within the competence of the Union Parliamentfalse
- 3The President has given her/his assenttrue
- 4It is passed by both the Housesfalse
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उत्तर : 3. "The President has given her/his assent"
व्याख्या :
Answer: C) The President has given her/his assent Explanation:
प्र: What is the full form of "RADAR" ? 1615 05b5cc6d3e4d2b4197774e4e1
5b5cc6d3e4d2b4197774e4e1- 1Radio Detecting and Rangingtrue
- 2Region Device and Rangingfalse
- 3Radio Detect and Rangsfalse
- 4Radio Device and Rangingfalse
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उत्तर : 1. "Radio Detecting and Ranging"
व्याख्या :
Answer: A) Radio Detecting and Ranging Explanation:
प्र: The first 8 alphabets are written down at random. what is the probability that the letters b,c,d,e always come together ? 2207 05b5cc6d3e4d2b4197774e4d7
5b5cc6d3e4d2b4197774e4d7- 11/7false
- 28!false
- 37!false
- 41/14true
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उत्तर : 4. "1/14"
व्याख्या :
Answer: D) 1/14 Explanation: The 8 letters can be written in 8! ways.n(S) = 8!Let E be the event that the letters b,c,d,e always come together when the first 8 alphabets are written down.Now the letters a, (bcde), f, g and h can be arranged in 5! ways.The letters b,c,d and e can be arranged themselves in 4! ways.n(E) = 5! x 4!Now, the required P(E) = n(E)/n(S) = 5! x 4!/8! = 1/14Hence the answer is 1/14.
प्र: In which year was "Jana Gana Mana" adopted as the National Anthem ? 1588 05b5cc6d3e4d2b4197774e4d2
5b5cc6d3e4d2b4197774e4d2- 11947false
- 21949false
- 31951false
- 41950true
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उत्तर : 4. "1950"
व्याख्या :
Answer: D) 1950 Explanation: 1950
प्र: A man sold two flats for Rs. 4.15 lakhs each. On one he gained 2% and on the other he lost 2%. What percent is the effect of the sale on the whole ? 1353 05b5cc6d3e4d2b4197774e4cd
5b5cc6d3e4d2b4197774e4cd- 10.25 %false
- 20.04 %true
- 30.5 %false
- 40 %false
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उत्तर : 2. "0.04 %"
व्याख्या :
Answer: B) 0.04 % Explanation: In this type cases we always have loss only. Loss% = Common Gain or Loss102= 2102= 1/25 = 0.04 %
प्र: Number Challenge Puzzle ? 1288 05b5cc6d3e4d2b4197774e4be
5b5cc6d3e4d2b4197774e4be- 11true
- 24false
- 35false
- 40false
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उत्तर : 1. "1"
व्याख्या :
Answer: A) 1 Explanation: In each row, Sum of 1st two digit number + last two digit number = Middle two digit number i.e., 1st row 15 + 40 = 55 2nd row 46 + 47 = 93 Similarly, 7x + 16 = 87 => x = 1.
प्र: Maths Challenge 1736 05b5cc6d3e4d2b4197774e4c3
5b5cc6d3e4d2b4197774e4c3- 119false
- 238false
- 322false
- 440true
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उत्तर : 4. "40"
व्याख्या :
Answer: D) 40 Explanation: To get a pair of black rings 100 percent certain 27 blue + 17 red + 2 black = 40 rings should be taken out Then only we can get 100 % a pair of black rings.
प्र: Math Logic Challenge 1546 05b5cc6d3e4d2b4197774e4b4
5b5cc6d3e4d2b4197774e4b4- 123false
- 226true
- 313false
- 429false
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उत्तर : 2. "26"
व्याख्या :
Answer: B) 26 Explanation: Let the integer be x. Then, x2-20x = 156 (x + 6)(x - 26) = 0 x = 26 The integer is 26.