IIT JEE Practice Question and Answer
8Q: Which of the following is not a Jovian planet? 1896 05b5cc69de4d2b4197774c94c
5b5cc69de4d2b4197774c94c- 1Jupiterfalse
- 2Earthtrue
- 3Saturnfalse
- 4Neptunefalse
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Answer : 2. "Earth"
Explanation :
Answer: B) Earth Explanation: Earth is not a Jovian Planet as it is a Terrestrial planet. A planet designated as Jovian is hence a gas giant, composed primarily of hydrogen and helium gas with varying degrees of heavier elements. Within the Solar System, four Jovian planets exist – Jupiter, Saturn, Uranus, and Neptune. Though these planets vary in terms of size, mass, and composition, they all share certain characteristics that cause them to differ greatly from the terrestrial planets located in the inner Solar System.
Q: What is so delicate that even mentioning it breaks it? 1896 05b5cc6a9e4d2b4197774cef4
5b5cc6a9e4d2b4197774cef4- Show AnswerHide Answer
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Answer :
Explanation :
Silence is what is so delicate that even mentioning it breaks it.
Q: Maths Challenge 1896 05b5cc6d3e4d2b4197774e4c3
5b5cc6d3e4d2b4197774e4c3- 119false
- 238false
- 322false
- 440true
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Answer : 4. "40"
Explanation :
Answer: D) 40 Explanation: To get a pair of black rings 100 percent certain 27 blue + 17 red + 2 black = 40 rings should be taken out Then only we can get 100 % a pair of black rings.
Q: What is the meaning of the four colour dots in the news paper? 1895 05b5cc683e4d2b4197774c2a6
5b5cc683e4d2b4197774c2a6- Show AnswerHide Answer
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Answer :
Explanation :
If you read newspaper daily, then you may be aware of the four coloured dots on the corner of the newspaper. The four dots CMYK — blue (Cyan), pink (Magenta), Yellow and black (Kalio) are registration marks used during printing to help ensure the print is aligned properly. Any colour can be obtained by adding the correct proportion of these four colours. CMYK is used as a base for the colours used in printing newspapers, and these four colours are often printed on the paper in either a heart, dot, or square shape. To print an image, the plates of all these colours are laid out on a page separately and lined up in the same spot while printing. If those four dots are blur or you find the colours overlapping on the image it means the printing is not good. To print an accurate and perfect image, the colors and shape must be arranged precisely and must be claear sharp in order to get the best output. That's why CMYK is also called registration mark. As physically checking all the pages of the paper is not possible for a printer who prints number of news papers daily, he just checks these dots.
Q: Prashanth sold a album for $ 735 and made a profit of 22.5% . The cost price of the album went up by $120 and so Prashanth increased the selling price by $120. What is his profit % now ? 1895 05b5cc715e4d2b4197774f431
5b5cc715e4d2b4197774f431- 119.32 %false
- 218.75 %true
- 321.41 %false
- 422 %false
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Answer : 2. "18.75 %"
Explanation :
Answer: B) 18.75 % Explanation: Prashanth sold a album for $ 735 and made a profit of 22.5% .CP = 735 x 100/122.5 = Rs. 600New CP = 600 + 120 = Rs. 720New SP = 735 + 120 = Rs. 855. Profit = Rs. 135. profit % = 100 x 135/720 = 18.75%.
Q: What is a word made up of 4 letters, yet is also made up of 3. Everything is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5. 1895 05b5cc6b3e4d2b4197774d3f2
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Answer :
Explanation :
The Riddle itself has the Answers. What is a 4 letter word Yet is written in 3 letters Everything is written with 9 letters Then with 4 letters Rarely has 6 letters Never is written in 5 letters.
Q: The profit earned by selling an article for Rs. 832 is equal to the loss incurred when the same article is sold for Rs. 448. What should be the sale price for making 50% profit ? 1895 05b5cc6dee4d2b4197774ea80
5b5cc6dee4d2b4197774ea80- 1Rs. 660false
- 2Rs. 560false
- 3Rs. 1060false
- 4Rs. 960true
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Answer : 4. "Rs. 960"
Explanation :
Answer: D) Rs. 960 Explanation: Let C.P. = Rs. C. Then, 832 - C = C - 4482C = 1280 => C = 640Required S.P. = 150% of Rs. 640 = 150/100 x 640 = Rs. 960.
Q: Raghu earns 25% on an investment but loses 10% on another investment. If the ratio of the two investment is 3:5. What is the gain or loss on two investments taken together ? 1894 05b5cc754e4d2b4197774fb72
5b5cc754e4d2b4197774fb72- 11.251 %false
- 23.125 %true
- 37.21 %false
- 49.451 %false
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Answer : 2. "3.125 %"
Explanation :
Answer: B) 3.125 % Explanation: Taking the 2 investments to be 3x and 5x respectivelyTotal income of Raghu = (3x) x 1.25 + (5x) x 0.9 = 8.25Therefore, Gain% = 0.25/8 x 100 = 3.125 %.

