GATE Practice Question and Answer
8Q: In following number series only one number is wrong. Find out that wrong or odd number in the series? 6, 78, 858, 7722, 54055, 270270 1867 05b5cc6bce4d2b4197774d8bb
5b5cc6bce4d2b4197774d8bb- 1270270false
- 254055true
- 37722false
- 4858false
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Answer : 2. "54055"
Explanation :
Answer: B) 54055 Explanation: Here the given series follows a pattern that, multiplying the number with odd numbers in decreasing order starting with 13. That is, 6 × 13 = 78 65 × 11 = 858 858 × 9 = 7722 7722 × 7 = 54054 54054 × 5 = 270270 Hence, the wrong number is 54055
Q: Read each part of the sentence to find out if there is any error in it. The error, if any, will be in one part of the sentence. The number of that part is the answer. As much as i admire him for his talent(1) / and endeavor to achieve success(2)/ I cannot forgive him for being so(3)/rude to the not so well to do ones(4) 1867 05b5cc6cae4d2b4197774e0a4
5b5cc6cae4d2b4197774e0a4- 1(1)true
- 2(2)false
- 3(3)false
- 4(4)false
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Answer : 1. "(1)"
Explanation :
Answer: A) (1) Explanation: The error lies in part (1). As the phrase 'as much as' needs to be replaced with 'much as I'. This is because we use 'as much as' for comparing two qualities or things. But here in the given sentence a contrast is given in the latter part of the sentence. So we need a conjunction like 'even though' 'although' etc... 'Much as I' also serves the same purpose.
Q: Namitha sold a powerbank which is at the cost of Rs. 1950 at a loss of 25%. Find at what cost will she have to sell it to get a profit of 25%? 1866 05b5cc6b1e4d2b4197774d341
5b5cc6b1e4d2b4197774d341- 1Rs. 3680false
- 2Rs. 3560false
- 3Rs. 3320false
- 4Rs. 3250true
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Answer : 4. "Rs. 3250"
Explanation :
Answer: D) Rs. 3250 Explanation: Let the Cost price of the powerbank = Rs. P But given that by selling it at Rs. 1950, it gives a loss of 25% => P x 75100 = 1950=>P = 1950 x 10075 = Rs. 2600Now, to get a profit of 25% Selling Price = 2600 x 125100 = Rs. 3250.
Q: In a compound, chemical energy is contained in the 1866 05b5cc60ae4d2b4197774b57d
5b5cc60ae4d2b4197774b57d- 1bondstrue
- 2movement of the electronsfalse
- 3unbonded electronsfalse
- 4nuclei of the atomsfalse
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Answer : 1. "bonds"
Explanation :
Answer: A) bonds Explanation: chemical energy is contained in the chemical bonds between the reactants in the chemical compounds.
Q: Name the movie that voted 2016’s Best Film by Indian film critics’ poll? 1863 05b5cc774e4d2b4197775005c
5b5cc774e4d2b4197775005c- 1Pinkfalse
- 2Sultanfalse
- 3Mohenjadarofalse
- 4Dangaltrue
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Answer : 4. "Dangal"
Explanation :
Answer: D) Dangal Explanation:
Q: Crack the Logical #MathPuzzle? 1863 05b5cc6bbe4d2b4197774d839
5b5cc6bbe4d2b4197774d839- Show AnswerHide Answer
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Answer :
Explanation :
From given data, Rs. 1 = 40 strawberries => Rs. 2 = 80 strawberries Rs. 5 = 1 apple => Rs. 95 = 19 apple. Rs. 3 = 1 mango => Rs. 3 = 1, mango Now, Total So 100 Rs = 100 Fruits.
Q: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 1862 05b5cc6c8e4d2b4197774df41
5b5cc6c8e4d2b4197774df41- 1143false
- 263true
- 3323false
- 435false
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Answer : 2. "63"
Explanation :
Answer: B) 63 Explanation: Here the series follows the pattern that, product of succesive prime numbers i.e, 2 × 3 = 6 3 × 5 = 15 5 × 7 = 35 7 × 11 = 77 11 × 13 = 143 13 × 17 = 221 17 × 19 = 323 So here in place of 77 the number 63 is written. So the wrong number is 63.
Q: An Engine length 1000 m moving at 10 m/s. A bird is flying from engine to end with 'x' m/s and coming back at '2x' m/s. Take total time of bird travelling as 187.5 s. Find x and 2x in km/hr ? 1862 05b5cc73de4d2b4197774f911
5b5cc73de4d2b4197774f911- 121.4 and 42.8false
- 225.2 and 50.4false
- 331.4208 and 62.8416true
- 433.12 and 66.24false
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Answer : 3. "31.4208 and 62.8416"
Explanation :
Answer: C) 31.4208 and 62.8416 Explanation: Birds speeds in mtrs/sec is 'x' and '2x' .While flying from Engine to end, relative speed = (x+10) m/secfrom end to engine, flying speed = (2x - 10) mtr/secso 1000/(x+10) + 1000/(2x-10) = 187.5 secssolving it, we getso x = 8.728 m/sec and 2x= 17.456 m/sec x = 31.4208 km/hr and 2x = 62.8416 km/hr.