प्रश्न और उत्तर का अभ्यास करें
8प्र: Amith can row a boat d km upstream and the same distance downstream in 5 hours 15 minutes. Also, he can row the boat 2d km upstream in 7 hours. How long will it take to row the same distance 2d km downstream for Amith ? 3146 05b5cc6c3e4d2b4197774dc63
5b5cc6c3e4d2b4197774dc63- 14 hrs 10 minfalse
- 23 hrs 15 minfalse
- 33 hrs 30 mintrue
- 44 hrs 1 minfalse
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उत्तर : 3. "3 hrs 30 min"
व्याख्या :
Answer: C) 3 hrs 30 min Explanation: Let the speed of boat and stream be x and y kmph respectively. According to question d/x+y + d/x-y = 5h 15m or 21/4 hrs ......(i) and 2d/x-y = 7...... (ii) From eq. (i) and (ii) 2d/x+y = 7/2 Hence, Amith will take to row 2d km distance downstream in 7/2 hrs = 3.5 hrs = 3 hrs 30 min.
प्र: The 'Puttingal Temple' is located in which of the following states ? 1405 15b5cc6c3e4d2b4197774dc59
5b5cc6c3e4d2b4197774dc59- 1Tamilnadufalse
- 2Biharfalse
- 3Uttar Pradeshfalse
- 4Keralatrue
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उत्तर : 4. "Kerala"
व्याख्या :
Answer: D) Kerala Explanation: Puttingal Temple was a Hindu temple in the coastal town of Paravur, India. The temple was founded after the presence of the goddess was experienced on an ant hill with Puttu being the Malayalam word for ant Hill.
प्र: At an examination in which maximum marks are 500. P got 10% less than Q, Q got 25% more than R and R got 20% less than S. If P got 360 marks what percentage of marks was obtained by S ? 1659 05b5cc6c3e4d2b4197774dc54
5b5cc6c3e4d2b4197774dc54- 177false
- 274false
- 380true
- 483false
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उत्तर : 3. "80"
व्याख्या :
Answer: C) 80 Explanation: Let marks obtained by S = M R's marks = 0.80M Q's marks = 1.25 (0.80M) P's marks = (0.90) (1.25) (0.80M) = 0.9M But 0.9M = 360 M = ? M = 400 Hence % of marks obtained by S = 400/500 x 100 = 80%.
प्र: A man reads 3/7 of a book on a day and 2/5 of the remaining, on the second day. If the number of pages still unread are 36, how many pages did the book contain ? 1467 05b5cc6c3e4d2b4197774dc4f
5b5cc6c3e4d2b4197774dc4f- 1105true
- 2101false
- 398false
- 4109false
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उत्तर : 1. "105"
व्याख्या :
Answer: A) 105 Explanation: Let number of pages in a book = p According to questions p - [3p/7 + (2/5 x 4p/7)] = 36 = p - 23p/35 = 36 => 12p = 36 × 35 p = 105
प्र: Which Bank has launched 'Project Nishchay' in partnership with The Boston Consulting Group (BCG) ? 1403 05b5cc6c3e4d2b4197774dc4a
5b5cc6c3e4d2b4197774dc4a- 1SBIfalse
- 2Dena Bankfalse
- 3IDBI Banktrue
- 4Yes Bankfalse
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उत्तर : 3. "IDBI Bank"
व्याख्या :
Answer: C) IDBI Bank Explanation: IDBI Bank has launched 'Project Nishchay' in partnership with The Boston Consulting Group (BCG) to accelerate its turnaround programme and improve financial performance.
प्र: Which gas is known as "Fuel of Future" ? 1763 05b5cc6c3e4d2b4197774dc45
5b5cc6c3e4d2b4197774dc45- 1Methanefalse
- 2Oxygenfalse
- 3Neonfalse
- 4Hydrogentrue
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उत्तर : 4. "Hydrogen"
व्याख्या :
Answer: D) Hydrogen Explanation: Because of its being pollution free and combustion efficient, Hydrogen gas is called fuel of future. Because of its origin in marshy places, Methane is called as 'Marsh Gas'.
प्र: Who termed the Indian Constitution as "Quasi Federal" ? 1441 05b5cc6c3e4d2b4197774dc40
5b5cc6c3e4d2b4197774dc40- 1D.D. Basufalse
- 2K.C. Whearetrue
- 3Ivor Jenningsfalse
- 4M.V. Payleefalse
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उत्तर : 2. "K.C. Wheare"
व्याख्या :
Answer: B) K.C. Wheare Explanation:
प्र: A earns 50% of B's salary, B earns 80% of C's salary. If the total earnings for a month is Rs. 22000, then what is the earning for A ? 1586 05b5cc6c3e4d2b4197774dc3b
5b5cc6c3e4d2b4197774dc3b- 1Rs. 4000true
- 2Rs. 4200false
- 3Rs. 4400false
- 4Rs. 4600false
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उत्तर : 1. "Rs. 4000"
व्याख्या :
Answer: A) Rs. 4000 Explanation: Let C's salary be Rs. x Then B's salary = 80x/100 => A's salary = (50/100) * (80x/100) = 40x/100 But given total earnings in a month = 22000 => x + 80x/100 + 40x/100 = 22000 => x + 120x/100 = 22000 => x = 10000 => A's salary = 40 x 10000/100 = Rs. 4000

