GATE Practice Question and Answer
8Q: What has a ring but no finger? 1797 05b5cc69de4d2b4197774c887
5b5cc69de4d2b4197774c887- Show AnswerHide Answer
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Answer :
Explanation :
A Telephone or an Alarm...
Q: The More You Have, The Less You See. What is it? 1796 05b5cc6b0e4d2b4197774d2a2
5b5cc6b0e4d2b4197774d2a2- 1Lightfalse
- 2Darknesstrue
- 3Sightfalse
- 4Nonefalse
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Answer : 2. "Darkness"
Explanation :
Answer: B) Darkness Explanation: The More You Have the┬аDarkness,┬аThe Less You See i.e, visible less.
Q: Find the sum to 200 terms of the series 2 + 5 + 7 + 6 + 12 + 7 + .... 1796 05b5cc754e4d2b4197774fb9f
5b5cc754e4d2b4197774fb9f- 130,400true
- 230,200false
- 334,600false
- 438,400false
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Answer : 1. "30,400"
Explanation :
Answer: A) 30,400 Explanation: we can treat every two consecutive terms as one.So, we will have a total of 100 terms of the nature:(2 + 5) + (7 + 6) + (12 + 7).... => 7, 13, 19,.... ┬а We know the sum of n terms┬а┬аnn+12 ┬а Now, a= 7, d=6 and n=100Hence the sum of the given series is S= 100/2 x[2 x 7 + 99 x 6]=> 50[608]=> 30,400.
Q: Rajeev's age is four more than the age of Shilpa. The age of Shilpa can be obtained by subtracting four times her age 4 years ago from the four times her age after 4 years. What was Rajeev's age before 4 years ? 1795 05b5cc6c7e4d2b4197774dea5
5b5cc6c7e4d2b4197774dea5- 136 yearsfalse
- 228 yearsfalse
- 332 yearstrue
- 440 yearsfalse
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Answer : 3. "32 years"
Explanation :
Answer: C) 32 years Explanation: Let Shilpa's present age is p years According to question, p = 4(x+4) тАУ 4(xтАУ4) p = 4x+16 тАУ 4x+16 p = 32 Shilpa's present age = 32 years Rajeev is four years older than Shilpa => Shilpa's present age = Rajeev's age 4 years before. => Rajeev's age 4 years before = 32 years.
Q: 36 identical books┬аmust be arranged in rows with the same number of books in each row. Each row must contain at least three books and there must be at least three rows. A row is parallel to the front of the room. How many different arrangements are possible ? 1795 05b5cc6cfe4d2b4197774e2f4
5b5cc6cfe4d2b4197774e2f4- 15true
- 26false
- 37false
- 48false
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Answer : 1. "5"
Explanation :
Answer: A) 5 Explanation: The following arrangements satisfy all 3 conditions. Arrangement 1: 3 books in a row; 12 rows. Arrangement 2: 4 books in a row; 9 rows.Arrangement 3: 6 books in a row; 6 rows.Arrangement 4: 9 books in a row; 4 rows.Arrangement 5: 12 books in a row; 3 rows. ┬а Therefore, the possible arrangements are 5.
Q: A certain sum is invested at simple interest at 18% p.a. for two years instead of investing at 12% p.a. for the same time period. Therefore the interest received is more by Rs. 840. Find the sum ┬а? 1790 05b5cc6e2e4d2b4197774ec39
5b5cc6e2e4d2b4197774ec39- 1Rs. 5858false
- 2Rs. 8800false
- 3Rs. 7000true
- 4Rs. 6350false
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Answer : 3. "Rs. 7000"
Explanation :
Answer: C) Rs. 7000 Explanation: Let the sum be Rs. S.(S x 18 x 2)/100 - (S x 12 x 2)/100 = 840 => 36S/100 - 24S/100 = 840 => 12S/100 = 840 => S = 7000.
Q: If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x+y is equal to ┬а? 1790 05b5cc761e4d2b4197774fd62
5b5cc761e4d2b4197774fd62- 15false
- 24false
- 33false
- 42true
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Answer : 4. "2"
Explanation :
Answer: D) 2 Explanation: Since 653xy is divisible by 5 as well as 2, so y = 0.Now, 653x0 must be divisible by 8.So, 3x0 must be divisible by 8. This happens when x = 2x + y = (2 + 0) = 2.
Q: What looks back but cannot see? 1789 05b5cc636e4d2b4197774ba14
5b5cc636e4d2b4197774ba14- Show AnswerHide Answer
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Answer :
Explanation :
Reflection is what which looks back but can't see.