IIT JEE Practice Question and Answer
8Q: The market price of an article was 40% more than its cost price. Rana was going to sell it at market price to a customer, but he showed Rana some defects in the article, due to which Rana gave him a discount of 28.57%. Next day he came again and showed Rana some more defects, hence he gave him another discount that was equal to 12.5% of the cost price. What was the approximate profit/loss to Rana ? 5237 05b5cc75ce4d2b4197774fc8e
5b5cc75ce4d2b4197774fc8e- 1Loss of 12.5%true
- 2Profit of 12.5%false
- 3Loss of 24.5%false
- 4Profit of 22.5%false
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Answer : 1. "Loss of 12.5%"
Explanation :
Answer: A) Loss of 12.5% Explanation: Let the cost price be Rs. 100Then, market price is Rs. 140Now, the first discount is of 28.57% Rs.140 =~ Rs. 40Hence, its selling price = 140 - 40 = Rs. 100Now since Rana is selling at cost price, any further discount will be equal to loss percentage. The next dicount of 12.5% will be the loss percentage to Rana.
Q: Five plays P, Q, R, S and T were organised in a week from Monday to Saturday with one play each day and no play was organised on one of these days. Play S was organised before Thursday but after Monday. Play T was organised on Saturday. Play R was not organised on the first day. Play Q was organised on the next day on which play R was organised. Play P was organised on Tuesday. 1) On which day was play Q organised ? 2) On which day was no play organised ? 3) Which play was organised on Thursday ? 5222 05b5cc736e4d2b4197774f855
5b5cc736e4d2b4197774f855- Show AnswerHide Answer
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Answer :
Explanation :
Day Play Monday No playTuesday PWednesday SThursday RFriday QSaturday T Answers : From the above table : 1) On Friday play Q was organised. 2) On Monday Noplay was organised. 3) On Thursday Play R was organised.
Q: An order was placed for the supply of a carpet whose breadth was 6 m and length was 1.44 times the breadth. What be the cost of a carpet whose length and breadth are 40% more and 25% more respectively than the first carpet. Given that the ratio of carpet is Rs. 45 per sq. m ? 5217 05b5cc6e2e4d2b4197774ec48
5b5cc6e2e4d2b4197774ec48- 1Rs. 4082.40true
- 2Rs. 1024.21false
- 3Rs. 2810.6false
- 4Rs. 3214false
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Answer : 1. "Rs. 4082.40"
Explanation :
Answer: A) Rs. 4082.40 Explanation: Length of the first carpet = (1.44)(6) = 8.64 cm Area of the second carpet = 8.64(1 + 40/100) 6 (1 + 25/100) = 51.84(1.4)(5/4) sq m = (12.96)(7) sq m Cost of the second carpet = (45)(12.96 x 7) = 315 (13 - 0.04) = 4095 - 12.6 = Rs. 4082.40
Q: Reading of a barometer going down is an indication of 5208 05b5cc698e4d2b4197774c64d
5b5cc698e4d2b4197774c64d- 1Stormfalse
- 2Rainfalltrue
- 3Snowfalse
- 4Intense heatfalse
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Answer : 2. "Rainfall"
Explanation :
Answer: B) Rainfall Explanation: Barometer is instrument which is used to measure to pressure. A slow downfall of reading suggests a low pressure area is passing in a nearby region, it may rains. If the reading is going down very fast then its an indication of storm (within 5-6 hours).
Q: Which statement about the Supreme Court is true? 5207 05b5cc69ae4d2b4197774c769
5b5cc69ae4d2b4197774c769- 1The court hears all cases for which two or more justices agree that the case has merit.false
- 2The court decides which cases it will hear. In deciding cases, the chief justice’s vote counts as two votes.true
- 3Every case appealed to the Supreme Court is ruled upon by the court.false
- 4The court can hear only cases that have worked their way up from local courts.false
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Answer : 2. "The court decides which cases it will hear. In deciding cases, the chief justice’s vote counts as two votes."
Explanation :
Answer: B) The court decides which cases it will hear. In deciding cases, the chief justice’s vote counts as two votes. Explanation:
Q: World Wide Web is being standard by 5198 15b5cc69de4d2b4197774c90e
5b5cc69de4d2b4197774c90e- 1W3Ctrue
- 2World Wide Web Standardfalse
- 3Worldwide corporationfalse
- 4World Wide Consortiumfalse
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Answer : 1. "W3C"
Explanation :
Answer: A) W3C Explanation: World Wide Web is being standard by W3C. The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. Led by Web inventor and Director Tim Berners-Lee and CEO Jeffrey Jaffe, W3C's mission is to lead the Web to its full potential.
Q: Exhibit : display :: send : ? 5144 05b5cc69ae4d2b4197774c7b8
5b5cc69ae4d2b4197774c7b8- 1Stampfalse
- 2Receivefalse
- 3Showfalse
- 4Emittrue
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Answer : 4. "Emit"
Explanation :
Answer: D) Emit Explanation: Here the given words represent synonyms. Exhibit and Display are synonyms for each other. Similarly, Send and Emit are synonyms for each other. Hence, Exhibit : display :: send : Emit.
Q: The incomes of two persons A and B are in the ratio 3:4. If each saves Rs.100 per month, the ratio of their expenditures is 1:2. Find their incomes ? 5137 05b5cc6e5e4d2b4197774ed0b
5b5cc6e5e4d2b4197774ed0b- 1200, 400false
- 2100, 300false
- 3100, 200false
- 4150, 200true
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Answer : 4. "150, 200"
Explanation :
Answer: D) 150, 200 Explanation: The incomes of A and B be 3P and 4P. Expenditures = Income - Savings (3P - 100) and (4P - 100) The ratio of their expenditure = 1:2 (3P - 100):(4P - 100) = 1:2 2P = 100 => P = 50 Their incomes = 150, 200