IIT JEE Practice Question and Answer
8Q: What does this symbol mean '&'? 2598 05b5cc6abe4d2b4197774cfc6
5b5cc6abe4d2b4197774cfc6- 1Caretfalse
- 2Barfalse
- 3Ampersandtrue
- 4Reversed Caretfalse
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Answer : 3. "Ampersand"
Explanation :
Answer: C) Ampersand Explanation: '&' is a Logical Symbol and is called as Ampersand. ^ is called Caret - is called Bar v is called Reversed Caret.
Q: Tilak rides on a cycle to a place at speed of 22 kmph and comes back at a speed of 20 kmph. If the time taken by him in the second case is 36 min. more than that of the first case, what is the total distance travelled by him (in km)? 2596 05b5cc6a0e4d2b4197774ca6c
5b5cc6a0e4d2b4197774ca6c- 1132 kmfalse
- 2264 kmtrue
- 3134 kmfalse
- 4236 kmfalse
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Answer : 2. "264 km"
Explanation :
Answer: B) 264 km Explanation: Let the distance travelled by Tilak in first case or second case = d kms Now, from the given data, d/20 = d/22 + 36 min => d/20 = d/22 + 3/5 hrs => d = 132 km. Hence, the total distance travelled by him = d + d = 132 + 132 = 264 kms.
Q: Who is known as the Second Law Officer of India? 2595 05b5cc6a4e4d2b4197774cc41
5b5cc6a4e4d2b4197774cc41- 1Chief justice of Indiafalse
- 2Law minister of Indiafalse
- 3Attorney general of Indiafalse
- 4Solicitor general of Indiatrue
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Answer : 4. "Solicitor general of India"
Explanation :
Answer: D) Solicitor general of India Explanation: The Solicitor General of India is the second law officer of the country. The Solicitor General of India is below the Attorney General for India, who is the Indian government's chief legal advisor, and its primary lawyer in the Supreme Court of India. The Solicitor General of India is appointed for the period of 3 years. He assists the Attorney General and is himself assisted by several Additional Solicitors General of India.
Q: The number of ways that 8 beads of different colours be strung as a necklace is 2595 05b5cc7b4e4d2b4197775089c
5b5cc7b4e4d2b4197775089c- 12520true
- 22880false
- 34320false
- 45040false
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Answer : 1. "2520"
Explanation :
Answer: A) 2520 Explanation: The number of ways of arranging n beads in a necklace is (n-1)!2=(8-1)!2=7!2 = 2520 (since n = 8)
Q: Processor's speed of a computer is measured in 2594 05b5cc683e4d2b4197774c2db
5b5cc683e4d2b4197774c2db- 1Hertztrue
- 2Baudfalse
- 3MIPSfalse
- 4BPSfalse
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Answer : 1. "Hertz"
Explanation :
Answer: A) Hertz Explanation: CPU speed is the central factor in a computer's performance. And this CPU speed depends on the processor in the CPU chip. In a computer, clock speed refers to the number of pulses per second generated by an oscillator that sets the tempo for the processor. Clock speed is usually measured in Hertz (Hz). But now-a-days, a pure processor's performance is measured in MIPS (Millions of Instructions Per Second). As here in the question, how a processor's speed is measured is asked and it is Hertz. Hence, Processor's speed of a computer is measured in Hertz(Hz) [MHz, GHz].
Q: Cellular respiration is best associated with the 2593 05b5cc642e4d2b4197774bb34
5b5cc642e4d2b4197774bb34- 1microtubulefalse
- 2ribosomefalse
- 3Golgi apparatusfalse
- 4mitochondriontrue
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Answer : 4. "mitochondrion"
Explanation :
Answer: D) mitochondrion Explanation: Cellular respiration is best associated with the organelle Mitochondrion.
Q: Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ? 2593 05b5cc74ae4d2b4197774fad1
5b5cc74ae4d2b4197774fad1- 11 : 2 : 3false
- 22 : 3 : 4true
- 33: 4 : 5false
- 44 : 5 : 6false
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Answer : 2. "2 : 3 : 4"
Explanation :
Answer: B) 2 : 3 : 4 Explanation: Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. Seats for Mathematics, Physics and Biology in a school are 5x, 7x and 8x. There is a proposal to increase these seats by 40%, 50% and 75% respectively. Then Seats for Mathematics, Physics and Biology in a school will be 1.4 X 5x, 1.5 X 7x and 1.75 X 8x and ratio will be 7 : 10.5 : 14 => 2:3:4.
Q: In a class of 180, where girls are twice the number of boys, Rupesh[a boy] ranked 34th from the top. If there are 18 girls ahead of Rupesh, how many boys are after him in rank? 2592 05b5cc7f3e4d2b41977751ec0
5b5cc7f3e4d2b41977751ec0- 145false
- 244true
- 360false
- 4can't be determinedfalse
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Answer : 2. "44"
Explanation :
Answer: B) 44 Explanation: No. of boys up to the 34th rank = 34-18 = 16 Total no of boys = 180x1/2+1 = 60 number of boys after the rank of Rupesh = 60 - 16 = 44

