GRE प्रश्न और उत्तर का अभ्यास करें
8प्र: If (2a + 3b)/(5a - 3b) = 23/5 , then the value of ba is ? 1909 05b5cc761e4d2b4197774fd39
5b5cc761e4d2b4197774fd39- 15false
- 24false
- 320true
- 428false
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उत्तर : 3. "20"
व्याख्या :
Answer: C) 20 Explanation: Given (2a + 3b)/(5a - 3b) = 23/5 => 10a + 15b = 115a - 69b=> 105a = 84b => 5a = 4b a/b = 4/5 => a=4 & b=5=> bxa = 5x4 = 20.
प्र: A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height.Two faces measuring 4 cm x 1 cm are coloured in black.Two faces measuring 6 cm x 1 cm are coloured in red.Two faces measuring 6 cm x 4 cm are coloured in green.The block is divided into 6 equal cubes of side 1 cm (from 6 cm side), 4 equal cubes of side 1 cm(from 4 cm side). How many cubes will have green colour on two sides and rest of the four sides having no colour ? 7455 05b5cc761e4d2b4197774fd34
5b5cc761e4d2b4197774fd34- 18true
- 224false
- 316false
- 44false
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उत्तर : 1. "8"
व्याख्या :
Answer: A) 8 Explanation: There are 16 small cubes attached to the outer walls of the cuboid.Therefore remaining inner small cubes will be the cubes having two sides green coloured.So the required number = 24 - 16 = 8
प्र: P’s son Q is married with R whose sister S is married to T the brother of Q. How S is related to P ? 1545 05b5cc761e4d2b4197774fd2f
5b5cc761e4d2b4197774fd2f- 1Daughter-in-lawtrue
- 2Sisterfalse
- 3Cousinfalse
- 4Sister-in-lawfalse
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उत्तर : 1. "Daughter-in-law"
व्याख्या :
Answer: A) Daughter-in-law Explanation: Since T is the brother of QTherefore, P is the father of Tbut S is the wife of T.Hence, S is the daughter-in-law of P.
प्र: B3D means B is the father of D.B7D means B is the sister of D.B2D means B is the brother of D.B1D means B is the wife of D. Which of the following means F is the mother of K? 1559 05b5cc761e4d2b4197774fd25
5b5cc761e4d2b4197774fd25- 1F3M1Kfalse
- 2F9M4N3Kfalse
- 3K3M4N5Ffalse
- 4F1M3Ktrue
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उत्तर : 4. "F1M3K"
व्याख्या :
Answer: D) F1M3K Explanation: From the given information, F1M → F is the wife of MM3K → M is the father of KTherefore, F is the mother of K.
प्र: Salaries of Karthik, Arun and Akhil were in the ratio 4 : 5 : 6 respectively. If their salaries were increased by 50 per cent, 60 per cent and 50 per cent respectively, what will be the new ratio of the salaries of Akhil, Arun and Karthik ? 1616 05b5cc761e4d2b4197774fd2a
5b5cc761e4d2b4197774fd2a- 16 : 8 : 9false
- 28 : 6 : 9false
- 39 : 8 : 6true
- 46 : 5 : 4false
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उत्तर : 3. "9 : 8 : 6"
व्याख्या :
Answer: C) 9 : 8 : 6 Explanation: Given the salaries are in the ratio of 4 : 5 : 6 Now the salaries are increased by 50%, 60% and 50% respectively The New ratio of salaries will be 4 x (150/100) : 5 x (160/100) : 6 x (150/100) = 6 : 8 : 9 The new ratio of salaries of Akhil, Arun and Karthik is 9 : 8 : 6
प्र: Only if Sheela is happy, then she does not go to work. 2091 05b5cc761e4d2b4197774fd20
5b5cc761e4d2b4197774fd20- 1Sheela is not happy and she goes to work.true
- 2Sheela is happy and she does not go to workfalse
- 3Sheela is not happy and she does not go to work.false
- 4Sheela is happy and she goes to work.false
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उत्तर : 1. "Sheela is not happy and she goes to work."
व्याख्या :
Answer: A) Sheela is not happy and she goes to work. Explanation: The event of "Sheela is not going to work" happens only when the event "Sheela is happy" happens. Also, if the event "Sheela is happy" does not happen, then the event "Sheela is not going to work" will not happen. In other words, if it is true that Sheela is not happy, then it means that Sheela is going to work.
प्र: Statement: Properly fed and starved monkeys were made to run through a network of paths designed as a puzzle. It was observed that the starved monkeys could not run faster. This proved that the people with lower intelligence in poor countries are a victim of malnutrition.Course of action:a. The effects of nutrition on the intelligence of the monkeys is parallel to those on human beings.b. Captive monkeys are more intelligent than wild monkeys. 1846 05b5cc761e4d2b4197774fd1b
5b5cc761e4d2b4197774fd1b- 1Only b followsfalse
- 2Only a followstrue
- 3Both a & b followsfalse
- 4Neither a nor b followsfalse
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उत्तर : 2. "Only a follows"
व्याख्या :
Answer: B) Only a follows Explanation: The proper nourishment will make the monkeys or human beings work properly. So, the course of action I follows. Course of action II does not follow as there is no information about captive or wild monkeys.
प्र: A clock is started at 11 a.m. By 600 seconds past 6 p.m, the hour hand has turned through ? 2244 05b5cc761e4d2b4197774fd11
5b5cc761e4d2b4197774fd11- 1155 degreesfalse
- 2175 degreesfalse
- 3205 degreesfalse
- 4215 degreestrue
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उत्तर : 4. "215 degrees"
व्याख्या :
Answer: D) 215 degrees Explanation: The total angle traced by the hour hand is the angle traced in 7 hours and 10 minutes.We know that the angle traced by the hour hand in one hour is 30º and in one minute is 1/2º.Therefore, (30º x 7) + (10 x 1/2º) = 215º is the angle traced by the hour hand.