GATE प्रश्न और उत्तर का अभ्यास करें
8- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर :
व्याख्या :
Scores of individuals : Dhoni= 80,30,10,10,1Raina=100,25,3,2,1Kholi=85,20,15,10,1Shikhar=90,20,15,3,3 Above combination satisfies all conditions given in the question. Answer 1) Raina Answer 2) Kohli and Shikhar Answer 3) Dhoni
प्र: What is the difference in the shares of profit between P and Q in a joint business at the end of one year ? a. P Invested Rs. 80,000 and withdrew Rs. 20,000 after 6 months. b. Q joined four months after the start of business. c. Q's amount was 80% of P's amount during the last six months. 2309 05b5cc70be4d2b4197774f2dc
5b5cc70be4d2b4197774f2dc- 1Only afalse
- 2Only cfalse
- 3Both a & bfalse
- 4Data is not sufficienttrue
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 4. "Data is not sufficient"
व्याख्या :
Answer: D) Data is not sufficient Explanation: a. P's investment = (80000 x 6 + 60000 x 6) = 840000 for 1 month. b & c. Q's investment = 80% of Rs. 60000 for 8 months. = Rs.(48000 x 8) for 1 month = 384000 for 1 month P : Q = 840000 : 384000 = 35 : 16. But, the total profit is not given, so data is inadequate.
प्र: What is the meaning of the four colour dots in the news paper? 2308 05b5cc683e4d2b4197774c2a6
5b5cc683e4d2b4197774c2a6- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर :
व्याख्या :
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.
प्र: The letters of the word PROMISE are to be arranged so that three vowels should not come together. Find the number of ways of arrangements? 2308 05b5cc6ade4d2b4197774d0f9
5b5cc6ade4d2b4197774d0f9- 14320true
- 24694false
- 34957false
- 44871false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "4320"
व्याख्या :
Answer: A) 4320 Explanation: Given Word is PROMISE. Number of letters in the word PROMISE = 7 Number of ways 7 letters can be arranged = 7! ways Number of Vowels in word PROMISE = 3 (O, I, E) Number of ways the vowels can be arranged that 3 Vowels come together = 5! x 3! ways Now, the number of ways of arrangements so that three vowels should not come together = 7! - (5! x 3!) ways = 5040 - 720 = 4320.
प्र: The ratio of speeds of a car, a train and a bus is 5:9:4. The average speed of the car, the bus and the train is 72 km/hr together. What is the average speed of the car and the train together ? 2308 05b5cc736e4d2b4197774f83c
5b5cc736e4d2b4197774f83c- 184 km/hrtrue
- 296 km/hrfalse
- 372 km/hrfalse
- 460 km/hrfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "84 km/hr"
व्याख्या :
Answer: A) 84 km/hr Explanation: Let the speeds of the car, train and bus be 5x, 9x and 4x km/hr respectively.Average speed = 5x + 9x + 4x/3 = 18x /3 = 6x km/hr.Also, 6x = 72 => x = 12 km/hrTherefore, the average speed of the car and train together is = 5x+9x2= 7x = 7 x 12 = 84 km/hr.
प्र: In which of the following organelles does photosynthesis take place? 2306 05b5cc6a7e4d2b4197774ce27
5b5cc6a7e4d2b4197774ce27- 1Miochondriafalse
- 2Chloroplasttrue
- 3Central Vacuolefalse
- 4Ribosomefalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 2. "Chloroplast"
व्याख्या :
Answer: B) Chloroplast Explanation: Chloroplasts use energy from light to transform carbon dioxide and water into sugar and oxygen. A green pigment located in membranes within the chloroplasts of plants and algae and in the membranes of certain prokaryotes.
प्र: 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 ? 2306 05b5cc73de4d2b4197774f911
5b5cc73de4d2b4197774f911- 121.4 and 42.8false
- 225.2 and 50.4false
- 331.4208 and 62.8416true
- 433.12 and 66.24false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 3. "31.4208 and 62.8416"
व्याख्या :
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.
प्र: Negative divided by Negative 2305 05b5cc6aae4d2b4197774cf2e
5b5cc6aae4d2b4197774cf2e- 1-vefalse
- 2+vetrue
- 30false
- 4Can't be determinedfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 2. "+ve"
व्याख्या :
Answer: B) +ve Explanation: We know the Mathematical rules that ++ = ++- = --+ = --- = +

