IIT JEE Practice Question and Answer
8Q: Which statement best describes Arteries? 2722 05b5cc6a5e4d2b4197774ccb0
5b5cc6a5e4d2b4197774ccb0- 1They have thin walls and transport blood away from the heartfalse
- 2They have thick walls and transport blood toward the heartfalse
- 3They have thin walls and transport blood toward the heartfalse
- 4They have thick walls and transport blood away from the hearttrue
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Answer : 4. "They have thick walls and transport blood away from the heart"
Explanation :
Answer: D) They have thick walls and transport blood away from the heart Explanation: Because arteries have to have thick walls for use of protection. Its when you get to veins where the walls get thinner. And the use of the heart is to pump blood to all of the cells and organs in the body so it would be to transport blood away from the heart. i.e. Arteries = Away from the Heart Veins = Back to the Heart.
Q: Find the next number in the series 143 143 136 110 ? 2721 05b5cc6b6e4d2b4197774d5a8
5b5cc6b6e4d2b4197774d5a8- 191false
- 235false
- 347true
- 469false
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Answer : 3. "47"
Explanation :
Answer: C) 47 Explanation: The next number in the series is 143 143 136 110 0 7 26 (Differences) 13 - 1 , 23 - 1, 33 - 1, 43 - 1,...Now the next number is given by110 - (43 - 1) = 110 - 63 = 47.
Q: What is the most important step in prioritizing goals? 2718 05b5cc6a5e4d2b4197774ccfa
5b5cc6a5e4d2b4197774ccfa- 1deciding what is most importanttrue
- 2having multiple tasks lined up for each goalfalse
- 3determining categories for various goalsfalse
- 4writing a list of goalsfalse
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Answer : 1. "deciding what is most important"
Explanation :
Answer: A) deciding what is most important Explanation: Always prioritize by what's most important to what is less important to us to reach our goals as soon as possible.
Q: What has teeth but cannot bite? 2717 05b5cc666e4d2b4197774befe
5b5cc666e4d2b4197774befe- 1Combtrue
- 2Sawfalse
- 3Zipperfalse
- 4Gearfalse
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Answer : 1. "Comb"
Explanation :
Answer: A) Comb Explanation: Saw, Zipper and Gear have teeth but can bite us. Comb have teeth but cannot bite.
Q: The circumferences of two circles are 264 meters and 352 meters. Find the difference between the areas of the larger and the smaller circles ? 2716 05b5cc6dee4d2b4197774ea79
5b5cc6dee4d2b4197774ea79- 12413 sq.mfalse
- 21234 sq.mfalse
- 34312 sq.mtrue
- 42143 sq.mfalse
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Answer : 3. "4312 sq.m"
Explanation :
Answer: C) 4312 sq.m Explanation: Let the radii of the smaller and the larger circles be 's' m and 'l' m respectively. 2πs = 264 and 2πl = 352 s = 2642π and l = 3522π Difference between the areas =πl2-πs2 = π1762π2-1322π2 = 1762π-1322π = (176 - 132)(176 + 132) / π = (44 x 308) / (22/7) = 4312 sq.m
Q: What will come in place of question mark(?) in the following number series ? 6859 5832 ? 4096 3375 2715 05b5cc6c0e4d2b4197774db1e
5b5cc6c0e4d2b4197774db1e- 14589false
- 24913true
- 35013false
- 45169false
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Answer : 2. "4913"
Explanation :
Answer: B) 4913 Explanation: The given series follows a pattern that, 19 x 19 x 19 = 6859 18 x 18 x 18 = 5832 17 x 17 x 17 = 4913 16 x 16 x 16 = 4096 15 x 15 x 15 = 3375 So, the missing number in the given series = 4913
Q: In these series, you will be looking at both the letter pattern and the number pattern. Fill the blank in the middle of the series or end of the series.SCD, TEF, UGH, ____, WKL 2710 05b5cc720e4d2b4197774f609
5b5cc720e4d2b4197774f609- 1UJIfalse
- 2VIJtrue
- 3XLMfalse
- 4DOPfalse
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Answer : 2. "VIJ"
Explanation :
Answer: B) VIJ Explanation: First letter series S,T,U,Vsecond and third letter series CD,EF,GH,IJ...so answer = VIJ
Q: Count the number of triangles and squares in the given figure. 2706 05b5cc7b0e4d2b41977750826
5b5cc7b0e4d2b41977750826- 136 triangles, 7 Squaresfalse
- 238 triangles, 9 Squaresfalse
- 340 triangles, 7 Squarestrue
- 442 triangles, 9 Squaresfalse
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Answer : 3. "40 triangles, 7 Squares"
Explanation :
Answer: C) 40 triangles, 7 Squares Explanation: The figure may be labelled as shown Triangles : The Simplest triangles are BGM, GHM, HAM, ABM, GIN, IJN, JHN, HGN, IKO, KLO, LJO, JIO, KDP, DEP, ELP, LKP, BCD and AFE i.e 18 in number The triangles composed of two components each are ABG, BGH, GHA, HAB, HGI, GIJ, IJH, JHG, JIK, IKL, KLJ,LJI, LKD, KDE, DEL and ELK i.e 16 in number. The triangles composed of four components each are BHI, GJK, ILD, AGJ, HIL and JKE i.e 6 in number. Total number of triangles in the figure = 18 + 16 + 6 =40. Squares : The Squares composed of two components each are MGNH, NIOJ, and OKPL i.e 3 in number The Squares composed of four components each are BGHA, GIJH, IKJL and KDEL i.e 4 in number Total number of squares in the figure = 3 + 4 =7