IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: A man can row 8 kmh in still water. If the river is running at 2 kmh, it takes 4 hrs more upstream than to go downstream for the same distance. Then the distance is given by 1220 05b5cc6c8e4d2b4197774df00
5b5cc6c8e4d2b4197774df00- 154 kmsfalse
- 232 kmsfalse
- 345 kmsfalse
- 460 kmstrue
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उत्तर : 4. "60 kms"
व्याख्या :
Answer: D) 60 kms Explanation: Let the distance be d. d8-2-d8+2 = 4 => 2d = 120 => d = 60 kms.
प्र: To fill 8 vacancies there are 15 candidates of which 5 are from ST. If 3 of the vacancies are reserved for ST candidates while the rest are open to all, Find the number of ways in which the selection can be done ? 1218 05b5cc6c4e4d2b4197774dcb3
5b5cc6c4e4d2b4197774dcb3- 17920true
- 274841false
- 314874false
- 410213false
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उत्तर : 1. "7920"
व्याख्या :
Answer: A) 7920 Explanation: ST candidates vacancies can be filled by C35 ways = 10 Remaining vacancies are 5 that are to be filled by 12 => C512= (12x11x10x9x8)/(5x4x3x2x1) = 792 Total number of filling the vacancies = 10 x 792 = 7920
प्र: Which is not a function of the cytoskeleton? 1218 05b5cc672e4d2b4197774c087
5b5cc672e4d2b4197774c087- 1helps the cell movefalse
- 2gives cell a shapefalse
- 3prevents chromosomes from separatingtrue
- 4None of the abovefalse
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उत्तर : 3. "prevents chromosomes from separating"
व्याख्या :
Answer: C) prevents chromosomes from separating Explanation: A cytoskeleton acts as a frame that gives a cell its shape, protects it to an extent, and helps with cellular motion.
प्र: For intra-State movement, the e-way bill by GST council will be rolled out in a phased manner beginning April 15 and will cover all the States by 1216 05b5cc6a3e4d2b4197774cc2a
5b5cc6a3e4d2b4197774cc2a- 1May 1true
- 2June 1false
- 3May 31false
- 4July 31false
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उत्तर : 1. "May 1"
व्याख्या :
Answer: A) May 1 Explanation: For intra-State movement, the e-way bill will be rolled out in a phased manner beginning April 15 and will cover all the States by June 1. Businesses will continue to file summary sales return GSTR-3B until June as the GST (Goods and Services Tax) Council has extended the present system of return-filing by three months. Electronic way or e-way bill for movement of goods between States would be implemented from April 1.
प्र: Indians who have been featured on Forbe's list of the 100 Greatest Living Business Minds ? 1214 05b5cc6c4e4d2b4197774dcf1
5b5cc6c4e4d2b4197774dcf1- 1Ratan Tatafalse
- 2Lakshmi Mittalfalse
- 3Vinod Khoslafalse
- 4All of the abovetrue
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उत्तर : 4. "All of the above"
व्याख्या :
Answer: D) All of the above Explanation: Three Indians – Ratan Tata, Lakshmi Mittal and Vinod Khosla have been featured on Forbe's list of the 100 Greatest Living Business Minds.
प्र: In a school of 1500 boys, 35% are Hindu, 30% are Sikh,15% are Muslims and remainning are Christians. Find number of christian boys in the school ? 1214 05b5cc6cbe4d2b4197774e117
5b5cc6cbe4d2b4197774e117- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
Given total number of boys in the school = 1500 In that 35% are Hindu, 30% are Sikh, 15% are Muslims => 35 + 30 + 15 = 80% Remaining Boys = 100% - 80% = 20% of 1500 => 20 x 1500/100 = 300 boys are Christians.
प्र: In which city 2017 Global Entrepreneurship Summit will be held ? 1208 05b5cc6c2e4d2b4197774dbd7
5b5cc6c2e4d2b4197774dbd7- 1New Delhifalse
- 2Hyderabadtrue
- 3Bangalurufalse
- 4Mumbaifalse
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उत्तर : 2. "Hyderabad"
व्याख्या :
Answer: B) Hyderabad Explanation: Government of India and the United States met today at NITI Aayog to plan the 2017 Global Entrepreneurship Summit, which will be held November 28-30 at the Hyderabad International Convention Centre in Hyderabad, India. The Summit will be inaugurated by Prime Minister Narendra Modi and Advisor to the President, Ivanka Trump, who leads the U.S. delegation.
प्र: Find the area of the square whose side is equal to the diagonal of a rectangle of length 3 cm and breadth 4 cm. 1205 05b5cc698e4d2b4197774c66b
5b5cc698e4d2b4197774c66b- 125 sq.cmtrue
- 216 sq.cmfalse
- 39 sq.cmfalse
- 44 sq.cmfalse
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उत्तर : 1. "25 sq.cm"
व्याख्या :
Answer: A) 25 sq.cm Explanation: Given length of the rectangle = 3 cm Breadth of the rectangle = 4 cm Then, the diagonal of the rectangle D = 32 + 42 = 25 = 5 Then, it implies side of square = 5 cm We know that Area of square = S x S = 5 x 5 = 25 sq.cm.

