IIT JEE Practice Question and Answer
8Q: In a certain Business, the profit is 220% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit ? 1874 05b5cc767e4d2b4197774fe45
5b5cc767e4d2b4197774fe45- 161%true
- 275%false
- 355%false
- 481%false
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Answer : 1. "61%"
Explanation :
Answer: A) 61% Explanation: Let C.P.= Rs. 100. Then, Profit = Rs.220, S.P. = Rs.320. New C.P. = 125% of Rs. 100 = Rs. 125 New S.P. = Rs.320. Profit = Rs. (320 - 125) = Rs. 195 Required percentage = 195320×100== 60.9 =~ 61%
Q: Can you spot the missing number? 1874 05b5cc615e4d2b4197774b6ec
5b5cc615e4d2b4197774b6ec- 13false
- 26false
- 3Both A & Btrue
- 4None of the abovefalse
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Answer : 3. "Both A & B"
Explanation :
Answer: C) Both A & B Explanation: The given number puzzle can be soved in two ways. Logic 1 :: Row 1 - 2 x 3 = 6 , 6 x 3 = 18 Row 2 - 4 x 5 = 20 , 20 x 5 = 100 Row 3 - 3 x 7 = 21 , 21 x 7 = 147 Hence, the missing number could be 3. Logic 2 :: Row 1 - 6 x (2+1) = 18 Row 2 - 20 x (4+1) = 100 Row 3 - 21 x (6+1) = 147 Hence, the missing number could be 6. Therefore, 3 or 6 is the right answer.
Q: When referring to student loans what is a grace period? 1873 05b5cc683e4d2b4197774c2c1
5b5cc683e4d2b4197774c2c1- 16 monthstrue
- 212 monthsfalse
- 318 monthsfalse
- 424 monthsfalse
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Answer : 1. "6 months"
Explanation :
Answer: A) 6 months Explanation: 6 months after graduating or quitting school when you have to start paying back the loans. A grace period is one term that’s provided for student loans that allow you to delay payments up to a certain length of time, without penalty. During a grace period no late charges would apply, and the loan would not risk falling into default for missed payments. The grace period allows you time to find financial stability prior to having to make payments on your student loans. Many students use student loans to help pay for their college expenses, including tuition, books, room and board, and other living expenses. Students are expected to repay these loans when they graduate.
Q: How many birthdays does the average person have? 1872 05b5cc670e4d2b4197774c05f
5b5cc670e4d2b4197774c05f- Show AnswerHide Answer
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Answer :
Explanation :
Any person can have only 1 birthday i.e, the day he was born. And every year we celebrate it's anniversaries.
Q: In Cricket the two sets of wickets are 1870 05b5cc6a6e4d2b4197774cd13
5b5cc6a6e4d2b4197774cd13- 122 yards aparttrue
- 224 yards apartfalse
- 320 yards apartfalse
- 421 yards apartfalse
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Answer : 1. "22 yards apart"
Explanation :
Answer: A) 22 yards apart Explanation: According to the rules and regulations of cricket, the height of the stumps must be of 28 inches or 71.12 cms. The total distance between the off stump and leg stump should be 9 inches or 22.86 cms. 1. Width and pitching. Two sets of wickets shall be pitched opposite and parallel to each other at a distance of 22 yards/20.12 meters.
Q: Which city has become the first Indian city to have its own logo? 1870 05b5cc6b9e4d2b4197774d734
5b5cc6b9e4d2b4197774d734- 1Bengalurutrue
- 2Hyderabadfalse
- 3New Delhifalse
- 4Gujaratfalse
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Answer : 1. "Bengaluru"
Explanation :
Answer: A) Bengaluru Explanation: Bengaluru becomes the first Indian city to get its very own logo Much like New York and Singapore, Bengaluru is set to get its own logo, becoming the first Indian city to do so.
Q: Sound travels fastest in 1869 05b5cc675e4d2b4197774c11b
5b5cc675e4d2b4197774c11b- 1Vacuumfalse
- 2Airfalse
- 3Glasstrue
- 4Waterfalse
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Answer : 3. "Glass"
Explanation :
Answer: C) Glass Explanation: Sound is a mechanical vibration and needs a medium for propagation. The higher the density of the medium, the faster the sound travels. So, sound cannot travel through vacuum. As the sound travels faster in solids than liquids and gases, sound travels faster in the glass than Air and water.
Q: In plants, chloroplasts are necessary for 1868 05b5cc699e4d2b4197774c706
5b5cc699e4d2b4197774c706- 1photosynthesistrue
- 2storagefalse
- 3cell movementfalse
- 4respirationfalse
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Answer : 1. "photosynthesis"
Explanation :
Answer: A) photosynthesis Explanation: Plants are producers, which means they make their own food. Chloroplasts are organelles found in eukaryotic and plant cells that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Plants use energy from sunlight to help make their food, but they need chloroplasts to do it. Hence, in plants, chloroplasts are necessary for Photosynthesis.

