IIT JEE Practice Question and Answer
8Q: How many Indian states share border with Myanmar ? 2019 05b5cc6d7e4d2b4197774e6dd
5b5cc6d7e4d2b4197774e6dd- 16false
- 27false
- 33false
- 44true
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Answer : 4. "4"
Explanation :
Answer: D) 4 Explanation: The four northeast Indian states share 1,643-km border with Myanmar – Arunachal Pradesh, Nagaland, Mizoram and Manipur. It is in news recently, because the Indian Government has set up an expert committee to examine the rules which allow free movement of Indian and Myanmarese citizens within 16 kms of the border, but are exploited by militants for smuggling arms, drugs, and fake Indian currency. The committee will be headed by the special secretary (Internal Security) in the Ministry of Home Affairs. The committee will give its report for uniform and effective implementation of free movement regime within 3 months. It will also prepare standard operating procedures common for all the four states so that militants, criminals and contraband are filtered at the border without causing inconvenience to genuine people.
Q: Let K and L be events on the same sample space, with P (K) = 0.8 and P (B) = 0.6. Are these two events are disjoint ? 1676 05b5cc6d7e4d2b4197774e6c6
5b5cc6d7e4d2b4197774e6c6- 1B) = 0.6. Are these two events are disjoint ? A)false
- 2= 0.6. Are these two events are disjoint ? A) TRUE B) FALSE Answer & Explanation Answer: B) FALSE Explanation: These two events cannot be disjoint because P(K) + P(L) > 1. P(AꓴB) = P(true
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Answer : 2. "= 0.6. Are these two events are disjoint ?
A) TRUE
B) FALSE
Answer & Explanation
Answer: B) FALSE
Explanation: These two events cannot be disjoint because P(K) + P(L) > 1.
P(AꓴB) = P("
Explanation :
Answer: B) FALSE Explanation: These two events cannot be disjoint because P(K) + P(L) > 1. P(AꓴB) = P(A) + P(B) - P(AꓵB). An event is disjoint if P(A ꓵ B) = 0. If K and L are disjoint P(K ꓴ L) = 0.8 + 0.6 = 1.4 And Since probability cannot be greater than 1, these two mentioned events cannot be disjoint.
Q: A fair six-sided die is rolled twice. What is the probability of getting 4 on the first roll and not getting 6 on the second roll ? 1949 05b5cc6d7e4d2b4197774e6c1
5b5cc6d7e4d2b4197774e6c1- 11/36false
- 25/36true
- 31/12false
- 41/9false
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Answer : 2. "5/36"
Explanation :
Answer: B) 5/36 Explanation: The two events mentioned are independent. The first roll of the die is independent of the second roll. Therefore the probabilities can be directly multiplied. P(getting first 4) = 1/6 P(no second 6) = 5/6 Therefore P(getting first 4 and no second 6) = 1/6 x 5/6 = 5/36
Q: Statement : The byproducts obtained from animals such as hairs, skins, horns, etc. contain at least 45 per cent food protein. Indian scientists have developed methods to segregate 50 per cent of this protein. They have used an enzyme developed in Russia for destruction of soya-proteins. Conclusions: A. Indian scientists cannot develop enzymes. B. If a suitable method involving less cost is developed then many more food protein would be obtained. 1164 05b5cc6d6e4d2b4197774e6a7
5b5cc6d6e4d2b4197774e6a7- 1Only A followsfalse
- 2Only B followsfalse
- 3Neither A nor B followstrue
- 4Both A & B followsfalse
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Answer : 3. "Neither A nor B follows"
Explanation :
Answer: C) Neither A nor B follows Explanation: There is no indication that Indian scientists are incapable of developing enzymes. There could be any number of reasons why Indian scientists used Russian enzymes. So conclusion A does not follow. In addition, cost is not discussed in the passage at all. There is no mention of a correlation between cost and extraction of proteins. Thus, conclusion B does not follow either.
Q: Joel introduces Mary as the daughter of the only son of my father’s wife. How is Joel related to Mary ? 3287 05b5cc6d6e4d2b4197774e698
5b5cc6d6e4d2b4197774e698- 1Daughterfalse
- 2Brotherfalse
- 3Sonfalse
- 4Fathertrue
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Answer : 4. "Father"
Explanation :
Answer: D) Father Explanation: Resolving from the last , In the view of joel,My father’s wife – motherOnly son of mother – himself i.e. joelDaughter of john– daughter. So Joel is Father of Mary.
Q: Find out which part of a sentence has an error and mark the answer corresponding to the appropriate letter (A, B, C). If a sentence is free from errors, mark (D) as the answer. He flew( 3903 05b5cc6d6e4d2b4197774e69d
5b5cc6d6e4d2b4197774e69d- 1/ over extensively(false
- 2C). If a sentence is free from errors, mark (D) as the answer. He flew(A) / over extensively(B)true
- 3. If a sentence is free from errors, mark (false
- 4as the answer. He flew(A) / over extensively(B) / the pacific last winter(C) / No error(D)false
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Answer : 2. "C). If a sentence is free from errors, mark (D) as the answer.
He flew(A) / over extensively(B)"
Explanation :
Answer: B) B Explanation: 'Extensively' is describing the verb 'flew' and should be placed after the verb and thus the correct phrase should be 'extensively over'. The error is in the second part of the sentence.
Q: Which type of forests occupies the highest percentage of area in India ? 1778 25b5cc6d6e4d2b4197774e693
5b5cc6d6e4d2b4197774e693- 1Savanna & desert vegetationfalse
- 2Tropical deciduoustrue
- 3Tropical Rainforestsfalse
- 4Equatorial evergreenfalse
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Answer : 2. "Tropical deciduous"
Explanation :
Answer: B) Tropical deciduous Explanation: Tropical Deciduous Forests: They are also called the “Monsoon forests”. They grow in the areas with annual rainfall of 70-200 cm. Sandal wood, Shisam, Mahua, Sal, Teak and Bamboo are important species of trees. Moist deciduous and the dry deciduous forests are two major categories of these forests.
Q: Majid Gyre is a feature of which of the following Oceans ? 2671 05b5cc6d6e4d2b4197774e68e
5b5cc6d6e4d2b4197774e68e- 1Indian Oceantrue
- 2Pacific Oceanfalse
- 3Atlantic Oceanfalse
- 4Arctic Oceanfalse
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Answer : 1. "Indian Ocean"
Explanation :
Answer: A) Indian Ocean Explanation: The Indian Ocean consists of one gyre, the Indian Ocean (Majid) Gyre, which exists mostly in the Southern Hemisphere. It is named after Ahmad Bin Majid, the 15th-century Arab mariner. Following shows the Oceans and their respective Gyres Indian Ocean - Majid Gyre North Atlantic Ocean - Columbus Gyre South Atlantic Ocean - Prince Henry Gyre North Pacific Ocean - Turtle Gyre South Pacific Ocean - Heyerdahl Gyre

