IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Three of the following four are alike in certain way and hence form a group. Which one of the following does not belong to that group ? 7859 05b5cc6f4e4d2b4197774efeb
5b5cc6f4e4d2b4197774efeb- 1BHFfalse
- 2LDJfalse
- 3OKGtrue
- 4ZTYfalse
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उत्तर : 3. "OKG"
व्याख्या :
Answer: C) OKG Explanation: OKGRemaining all are not in series only OKG is in series of(15,11,7) Here it follows the random difference of '4'.
प्र: Manoj and Satya are ranked seventh and eleventh respectively from the top in a class of 31 students. What will be their respective ranks from the bottom in the class ? 1944 05b5cc6f4e4d2b4197774efe1
5b5cc6f4e4d2b4197774efe1- 125th and 21sttrue
- 226th and 22ndfalse
- 320th and 24thfalse
- 424th and 20thfalse
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उत्तर : 1. "25th and 21st"
व्याख्या :
Answer: A) 25th and 21st Explanation: Number of students behind Manoj in rank = (31 - 7) = 24. So, Manoj is 25th from the bottom. Number of students behind Satya in rank = (31 - 11) = 20. So, Satya is 21st from the bottom.
प्र: In a triangle ABC, angle 'a' is the smallest one & A+7B = 112. Find the range of value 'c' ? 1377 05b5cc6f4e4d2b4197774efe6
5b5cc6f4e4d2b4197774efe6- 1138 to 164false
- 2125 to 147false
- 3148 to 158false
- 4152 to 164true
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उत्तर : 4. "152 to 164"
व्याख्या :
Answer: D) 152 to 164 Explanation: A+7B=112 it is clear that A = 14, then it becomes A>=B, but A is smallest angle) givenso, range of A is 0.0001 to 13.9999 ( I am taking upto 4 decimal places)so, range of B becomes 14 to 16 ( after rounding off to 4 decimal places)so, range of C becomes 152 to 164 ( after rounding off to 4 decimal places)
प्र: Solve the equation 122x+1 = 1 ? 4519 05b5cc6f4e4d2b4197774efd7
5b5cc6f4e4d2b4197774efd7- 1-1/2true
- 21/2false
- 31false
- 4-1false
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उत्तर : 1. "-1/2"
व्याख्या :
Answer: A) -1/2 Explanation: Rewrite equation as 122x+1 = 120 Leads to 2x + 1 = 0 Solve for x : x = -1/2
प्र: A girl introduced a boy as the son of the daughter of the father of her uncle. The boy is girl's ? 1555 05b5cc6f4e4d2b4197774efdc
5b5cc6f4e4d2b4197774efdc- 1Sonfalse
- 2Brothertrue
- 3Cousinfalse
- 4Nephewfalse
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उत्तर : 2. "Brother"
व्याख्या :
Answer: B) Brother Explanation: Brother Justification: Daughter of uncle's father -- Uncle's sister -- Mother; Mother's son -- Brother.
प्र: There are approximately how many muscles in Human body ? 1855 05b5cc6f4e4d2b4197774efaa
5b5cc6f4e4d2b4197774efaa- 1206false
- 2310false
- 3554false
- 4700true
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उत्तर : 4. "700"
व्याख्या :
Answer: D) 700 Explanation: Approximatey there are 700 muscles in Human body.
प्र: What is the maximum velocity with which a body of mass 'm' must enter a vertical loop of radius 'R'so that it can complete the loop? 1584 05b5cc6f1e4d2b4197774ef91
5b5cc6f1e4d2b4197774ef91- 10false
- 2gRfalse
- 32gRfalse
- 45gRtrue
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उत्तर : 4. "5gR"
व्याख्या :
Answer: D) D Explanation: To complete the vertical loop, the minimum speed required at the lowest point = 5gR.
प्र: Indian Water falls "Kunchikal falls" is in which state ? 2215 05b5cc6f1e4d2b4197774ef64
5b5cc6f1e4d2b4197774ef64- 1Odishafalse
- 2Maharastrafalse
- 3Rajasthanfalse
- 4Karnatakatrue
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उत्तर : 4. "Karnataka"
व्याख्या :
Answer: D) Karnataka Explanation: Kunchikal falls of India is of height 1493 ft is in Karnataka state of the river Varahi.