IIT JEE Practice Question and Answer
8Q: The average age of husband, wife and their child 3 years ago was 24 years and that of wife and child 5 years ago was 25 years. The present age of the husband is: 1682 05b5cc6bce4d2b4197774d8d4
5b5cc6bce4d2b4197774d8d4- 121 yrstrue
- 227 yrsfalse
- 329 yrsfalse
- 431 yrsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "21 yrs"
Explanation :
Answer: A) 21 yrs Explanation: Sum of ages of husband, wife and child= (24 × 3) + 9 = 81 years Sum of ages of wife and child => 25 × 2 + 10 = 50 + 10 = 60 years Age of husband = 81 - 60 = 21 years.
Q: A characteristic of this era was the introduction of pottery. 1682 05b5cc69ae4d2b4197774c7b3
5b5cc69ae4d2b4197774c7b3- 1Mesolithictrue
- 2Paleolithicfalse
- 3Neolithicfalse
- 4None of abovefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Mesolithic"
Explanation :
Answer: A) Mesolithic Explanation:
Q: The length of a rectangular plot is increased by 50%, to keep its area unchanged, the width of the plot should be decreased by ______? 1681 05b5cc6bce4d2b4197774d8ca
5b5cc6bce4d2b4197774d8ca- 129.87%false
- 233.33%true
- 322.22%false
- 419.5%false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "33.33%"
Explanation :
Answer: B) 33.33% Explanation: % Decrease in Width = 50150x100 = 33.33%
Q: If 5 men and 2 boys working together, can do four times as much work per hour as a man and a boy together. Find the ratio of the work done by a man and that of a boy for a given time ? 1680 05b5cc6e2e4d2b4197774ec4d
5b5cc6e2e4d2b4197774ec4d- 11:2false
- 21:3false
- 33:1false
- 42:1true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "2:1"
Explanation :
Answer: D) 2:1 Explanation: 5M + 2B = 4(1M + 1B) 5M + 2B = 4M + 4B 1M = 2B The required ratio of work done by a man and a boy = 2:1
Q: What is the main purpose of state legislatures? 1680 05b5cc699e4d2b4197774c67f
5b5cc699e4d2b4197774c67f- 1to make and pass laws at the state leveltrue
- 2to control the legislation of local governmentsfalse
- 3to provide legislative support for Congressfalse
- 4to challenge the legality of federal lawsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "to make and pass laws at the state level"
Explanation :
Answer: A) to make and pass laws at the state level Explanation: Each state in the U.S. has a state legislature. The state legislatures main purpose is to make and pass laws at the state level. An integral part to each state government - indeed where the people of each state are best represented - is the state legislature. State legislatures are the respective representative bodies for the people of each state. The primary responsibility of any state legislature is to design, draft, and vote on bills and laws to govern each state. Bills and laws generally go through several committees prior to being voted on in the entire assembly, through which the bills and laws are changed, amended, or killed altogether.
Q: Ravi, Anand and Pranay are running a business firm in partnership. What is Anand's share in the profit earned by them? a. Ravi, Anand and Pranay invested the amounts in the ratio of 2 : 4 : 7. b. Pranay's share in the profit is Rs. 8750. 1679 05b5cc767e4d2b4197774fe31
5b5cc767e4d2b4197774fe31- 1Only a is sufficientfalse
- 2Neither a nor b is sufficientfalse
- 3Only b is sufficientfalse
- 4Both a and b sufficienttrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Both a and b sufficient"
Explanation :
Answer: D) Both a and b sufficient Explanation: Given Pranay's profit in the share is Rs. 8750 But given that their investments are in the ratio 2:4:7 713×P = 8750 P = 16250 Now Anand's share = 413×16250 = Rs.5000 Thus both staements a and b are sufficient to answer this question.
Q: What is the political party of the president now? 1679 05b5cc699e4d2b4197774c684
5b5cc699e4d2b4197774c684- 1BJPtrue
- 2INCfalse
- 3BSPfalse
- 4NCPfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "BJP"
Explanation :
Answer: A) BJP Explanation: Ram Nath Kovind, the present President of India is from BJP, Bharatiya Janata Party. The president of the Republic India is the head of state of India. He is also the commander-in-chief of Indian Armed Forces. He is indirectly elected by the people through members of both houses of the parliament of India, legislative assemblies of all the states of India, the legislative assembly of the Union
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 3 or 5 ? 1678 05b5cc764e4d2b4197774fd7b
5b5cc764e4d2b4197774fd7b- 12/3false
- 21/2true
- 37/8false
- 44/5false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "1/2"
Explanation :
Answer: B) 1/2 Explanation: Multiples of 3 below 20 are 3, 6, 9, 12, 15, 18 Multiples of 5 below 20 are 5, 10, 15, 20 Required number of possibilities = 10Total number of possibilities = 20Required probability = 10/20 = 1/2.