IIT JEE Practice Question and Answer
8Q: 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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Answer : 4. "60 kms"
Explanation :
Answer: D) 60 kms Explanation: Let the distance be d. d8-2-d8+2 = 4 => 2d = 120 => d = 60 kms.
Q: 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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Answer : 1. "7920"
Explanation :
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
Q: 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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Answer : 3. "prevents chromosomes from separating"
Explanation :
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.
Q: 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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Answer : 1. "May 1"
Explanation :
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.
Q: 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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Answer : 4. "All of the above"
Explanation :
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.
Q: 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- Show AnswerHide Answer
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Answer :
Explanation :
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.
Q: In which city 2017 Global Entrepreneurship Summit will be held ? 1208 05b5cc6c2e4d2b4197774dbd7
5b5cc6c2e4d2b4197774dbd7- 1New Delhifalse
- 2Hyderabadtrue
- 3Bangalurufalse
- 4Mumbaifalse
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Answer : 2. "Hyderabad"
Explanation :
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.
Q: 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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Answer : 1. "25 sq.cm"
Explanation :
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.

