IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Excise duty is a tax levied on the 1130 05b5cc6a9e4d2b4197774ced5
5b5cc6a9e4d2b4197774ced5- 1Export of goodsfalse
- 2Import of goodsfalse
- 3sale of goodsfalse
- 4Production of goodstrue
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उत्तर : 4. "Production of goods"
व्याख्या :
Answer: D) Production of goods Explanation: An excise or excise tax or excise duty is a type of tax charged on goods produced within the country (as opposed to customs duties, charged on goods from outside the country). It is a tax on the production of a good. This tax is now known as the Central Value Added Tax (CENVAT).
प्र: Find the regular polygon whose interior angel is 150 more than exterior angle. note the total sum of interior and exterior angle should be 180 at one point ? 1128 05b5cc709e4d2b4197774f2be
5b5cc709e4d2b4197774f2be- 112false
- 224true
- 336false
- 46false
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उत्तर : 2. "24"
व्याख्या :
Answer: B) 24 Explanation: Sum of Interior angle is 180 .and it is given that interior angle is 150 more than exterior,so let exterior angle is x then interior will be x+150 now , interior + exterior =180x+150+x=180x=15 now , number of sides of polygon = 360 / exterior anglen = 360 / 15n = 24
प्र: A man has only 20-paise and 25-paise coins in a bag. If he has 50 coins in all totaling to Rs.10.25, then the number of 20-paise coins is 1128 05b5cc73ae4d2b4197774f8c4
5b5cc73ae4d2b4197774f8c4- 142false
- 245true
- 338false
- 436false
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उत्तर : 2. "45"
व्याख्या :
Answer: B) 45 Explanation: Let number of 20 ps coins = x and number of 25 ps coins = y Given total coins in the bag = 50 x + y = 50.......(1) But the total money in the bag = Rs. 10.25 0.20x + 0.25y = 10.25 20x + 25y = 1025.........(2) Now multiplying (1) by 25 we get 25x+25y=1250.............(3) By solving (2) and (3) 20x + 25y = 1025; => x = 45; Then, the no. of 20 ps coins are 45.
प्र: 3 divided by 1/3? 1127 05b5cc6b3e4d2b4197774d487
5b5cc6b3e4d2b4197774d487- 11false
- 20false
- 39true
- 4Nonefalse
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उत्तर : 3. "9"
व्याख्या :
Answer: C) 9 Explanation: 3 divided by 1/3 => 313 = 3 x 3/1 = 9
प्र: 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 ? 1126 05b5cc741e4d2b4197774f9d6
5b5cc741e4d2b4197774f9d6- 16/19false
- 23/10true
- 37/10false
- 46/17false
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उत्तर : 2. "3/10"
व्याख्या :
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.
प्र: Which of the following is the world's most poisonous snake called Hydrophis ? 1123 05b5cc6c5e4d2b4197774dd96
5b5cc6c5e4d2b4197774dd96- 1Adderfalse
- 2Boafalse
- 3Cobrafalse
- 4Sea Snaketrue
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उत्तर : 4. "Sea Snake"
व्याख्या :
Answer: D) Sea Snake Explanation:
प्र: Which results from an increase in the greenhouse effect? 1122 05b5cc658e4d2b4197774bdae
5b5cc658e4d2b4197774bdae- 1Ocean acidificationfalse
- 2Smog pollutionfalse
- 3Ozone depletionfalse
- 4All the abovetrue
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उत्तर : 4. "All the above"
व्याख्या :
Answer: D) All the above Explanation: A greenhouse gas (GHG) is any gas in the atmosphere that absorbs and emits radiation in the thermal infrared range. The increase in average global temperatures that results from an enhanced greenhouse effect. Effects of increased greenhouse gas emissions: Increases in the different greenhouse gases have other effects apart from global warming including ocean acidification, smog pollution, ozone depletion as well as changes to plant growth and nutrition levels.
प्र: Multiplicative inverse of 7? 1119 05b5cc666e4d2b4197774bf08
5b5cc666e4d2b4197774bf08- 11false
- 2-1/7false
- 30false
- 41/7true
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उत्तर : 4. "1/7"
व्याख्या :
Answer: D) 1/7 Explanation: Multiplicative inverse is nothing but a reciprocal of a number. It is defined as one of a pair of numbers that when multiplied with another number equals the number 1. Multiplicative inverse or reciprocal of 7 is 7 x n = 1 => n = 1/7. Hence, Multiplicative inverse or reciprocal of 7 is 1/7.

