IIT JEE Practice Question and Answer
8Q: Which day is declared as " International Day of Sport for Development and Peace (IDSDP) " by the UN General Assembly ? 889 05b5cc6fbe4d2b4197774f0d3
5b5cc6fbe4d2b4197774f0d3- 15th Aprilfalse
- 26th Apriltrue
- 37th Aprilfalse
- 48th Aprilfalse
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Answer : 2. "6th April"
Explanation :
Answer: B) 6th April Explanation: 6 April was declared as the International Day of Sport for Development and Peace (IDSDP) by the UN General Assembly. On the occasion of the 2017 International Day of Sport for Development and Peace (IDSDP), the United Nations Office on Sport for Development and Peace (UNOSDP) launches the digital campaign #WePlayTogether to encourage organizations and individuals.
Q: Which country has been ranked number one in pollution related deaths ? 889 05b5cc6c0e4d2b4197774db19
5b5cc6c0e4d2b4197774db19- 1Australiafalse
- 2Indonesiafalse
- 3Indiatrue
- 4Japanfalse
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Answer : 3. "India"
Explanation :
Answer: C) India Explanation:
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 ? 888 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: A can finish a work in 18 days and B can do the same work in half the time taken by A. then, working together, what part of the same work they can finish in a day ? 888 05b5cc6dde4d2b4197774ea14
5b5cc6dde4d2b4197774ea14- 1Total workfalse
- 2One-fourth workfalse
- 3Half worktrue
- 4Two-third workfalse
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Answer : 3. "Half work"
Explanation :
Answer: C) Half work Explanation: A can do the work = 18 daysB can do the work = 18/2 = 9 days(A + B)'s 1 day work = 1/18 + 1/9 = 1/6=> In 3 days = 3x1/6 = 1/2 work is completed.
Q: Which is in India wins Pierre L'Enfant International Planning Excellence Award 2017 ? 887 05b5cc6e5e4d2b4197774ed4c
5b5cc6e5e4d2b4197774ed4c- 1Banglorefalse
- 2Hyderabadfalse
- 3Bhubaneshwartrue
- 4Delhifalse
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Answer : 3. "Bhubaneshwar"
Explanation :
Answer: C) Bhubaneshwar Explanation: The American Planning Association (APA) has announced this year's international excellence award for the Bhubaneswar smart city project. The award called Pierre L'Enfant International Planning Excellence Award 2017 will be given on May 8 in New York city. This is the first time in the 50 years history of APA's annual award programme that an Indian city has been recognised for its planning efforts.
Q: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 4 or 15 ? 887 05b5cc741e4d2b4197774f9d6
5b5cc741e4d2b4197774f9d6- 16/19false
- 23/10true
- 37/10false
- 46/17false
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Answer : 2. "3/10"
Explanation :
Answer: B) 3/10 Explanation: Here, S = {1, 2, 3, 4, ...., 19, 20}=> n(s) = 20Let E = event of getting a multiple of 4 or 15 =multiples od 4 are {4, 8, 12, 16, 20}And multiples of 15 means multiples of 3 and 5= {3, 6 , 9, 12, 15, 18, 5, 10, 15, 20}.= the common multiple is only (15).=> E = n(E)= 6Required Probability = P(E) = n(E)/n(S) = 6/20 = 3/10.
Q: Two trains running in opposite directions cross a pole placed on the platform in 47 seconds and 31 seconds respectively. If they cross each other in 33 seconds, what is the ratio of their speeds? 887 05b5cc764e4d2b4197774fd85
5b5cc764e4d2b4197774fd85- 11:7true
- 27:1false
- 32:3false
- 43:2false
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Answer : 1. "1:7"
Explanation :
Answer: A) 1:7 Explanation: Let the speed of the trains be x and y respectively length of train1 = 47xlength of train2 = 31yRelative speed= x + yTime taken to cross each other = 33 s=> 47x+31yx+y= 33=> (47x + 31 y) = 33(x + y)=> 14x = 2y=> x/y = 2/14 = 1/7 = 1:7
Q: In the given number series which follows the definite rules then find out the value of (M, N, O, and P) in second number series. 7 18 42 94 204 4 M N O P What value will come in place of P? 887 05b5cc6b4e4d2b4197774d4e8
5b5cc6b4e4d2b4197774d4e8- 1179false
- 2184false
- 3164false
- 4156true
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Answer : 4. "156"
Explanation :
Answer: D) 156 Explanation: Here the given series 7 18 42 94 204 follows a pattern that, 7 7 ×2+4 = 18 18 ×2+6 = 42 42 ×2+10 = 94 94 ×2+16 = 204 Similarly, 4 4 ×2+4 = 12 12 ×2+6 = 30 30 ×2+10 = 70 70 ×2+16 = 156 Hence, the value of P = 156.