IIT JEE Practice Question and Answer
8Q: The first 8 alphabets are written down at random. what is the probability that the letters b,c,d,e always come together ? 2291 05b5cc6d3e4d2b4197774e4d7
5b5cc6d3e4d2b4197774e4d7- 11/7false
- 28!false
- 37!false
- 41/14true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "1/14"
Explanation :
Answer: D) 1/14 Explanation: The 8 letters can be written in 8! ways.n(S) = 8!Let E be the event that the letters b,c,d,e always come together when the first 8 alphabets are written down.Now the letters a, (bcde), f, g and h can be arranged in 5! ways.The letters b,c,d and e can be arranged themselves in 4! ways.n(E) = 5! x 4!Now, the required P(E) = n(E)/n(S) = 5! x 4!/8! = 1/14Hence the answer is 1/14.
Q: What sugar is found in RNA? 2290 05b5cc6a7e4d2b4197774ce31
5b5cc6a7e4d2b4197774ce31- 1Deoxyribosefalse
- 2Ribosetrue
- 3Pentosefalse
- 4Sucrosefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Ribose"
Explanation :
Answer: B) Ribose Explanation: RNA - ribonucleic acid is a type of nucleic acid. The sugar contained in it is called Ribose.
Q: Tractor : Trailer :: Horse : ? 2289 05b5cc69de4d2b4197774c947
5b5cc69de4d2b4197774c947- 1Saddlefalse
- 2Enginefalse
- 3Carttrue
- 4Stablefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Cart"
Explanation :
Answer: C) Cart Explanation: Here the given words are related in such a way that, Trailer is pulled by Tractor and similarly, Cart is pulled by Horse. Hence, Tractor : Trailer :: Horse : Cart.
Q: Who translated Mahabharata into Persian? 2289 05b5cc658e4d2b4197774bdd3
5b5cc658e4d2b4197774bdd3- 1Jahangirfalse
- 2Aurangzebfalse
- 3Akbartrue
- 4Shahjahanfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Akbar"
Explanation :
Answer: C) Akbar Explanation: The Mahabharata was translated into Persian at Akbar’s orders, by Faizi and 'Abd al-Qadir Bada' uni (c. 1540 – 1615) and named Razmnameh.
Q: The Peacock Throne was a famous jeweled throne that was the seat of the ________ emperors of India. 2288 05b5cc6b7e4d2b4197774d61a
5b5cc6b7e4d2b4197774d61a- 1Mughaltrue
- 2Mauryafalse
- 3Guptafalse
- 4Marathafalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Mughal"
Explanation :
Answer: A) Mughal Explanation: The Peacock Throne was a famous jeweled throne that was the seat of the Mughal emperors of India. It was commissioned in the early 17th century by emperor Shah Jahan and was located in the Red Fort of Delhi.
Q: If (2a + 3b)/(5a - 3b) = 23/5 , then the value of ba is ? 2288 05b5cc761e4d2b4197774fd39
5b5cc761e4d2b4197774fd39- 15false
- 24false
- 320true
- 428false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "20"
Explanation :
Answer: C) 20 Explanation: Given (2a + 3b)/(5a - 3b) = 23/5 => 10a + 15b = 115a - 69b=> 105a = 84b => 5a = 4b a/b = 4/5 => a=4 & b=5=> bxa = 5x4 = 20.
Q: Which word in the dictionary is spelled incorrectly? 2288 05b5cc63de4d2b4197774bb19
5b5cc63de4d2b4197774bb19- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
Incorrectly is the only word which is spelled incorrectly in the dictionary.
Q: The coldest planet in the solar system is ? 2287 05b5cc723e4d2b4197774f663
5b5cc723e4d2b4197774f663- 1Venusfalse
- 2Jupiterfalse
- 3Uranustrue
- 4Plutofalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Uranus"
Explanation :
Answer: C) Uranus Explanation:

