GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: A passenger train covers the distance between station K and L, 40 minutes faster than a goods train. Find this distance between K and L if the average speed of the passenger train is 50 km/h and that of goods train is 30 km/h? 2133 05b5cc6b4e4d2b4197774d4c5
5b5cc6b4e4d2b4197774d4c5- 150 kmstrue
- 248 kmsfalse
- 346 kmsfalse
- 444 kmsfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "50 kms"
व्याख्या :
Answer: A) 50 kms Explanation: Let the distance be 'd' kms. According to the given data, d30 - d50 = 4060 hrs=> 6d = 300=> d = 50 kms.
प्र: What is 7 C in a R represents? 1588 05b5cc6b4e4d2b4197774d4ba
5b5cc6b4e4d2b4197774d4ba- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर :
व्याख्या :
7 C in a R represents 7 Colours in a Rainbow.
प्र: In how many different ways can the letters of the word 'POVERTY' be arranged ? 1489 05b5cc6b4e4d2b4197774d4bb
5b5cc6b4e4d2b4197774d4bb- 12520false
- 25040true
- 31260false
- 4Nonefalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 2. "5040"
व्याख्या :
Answer: B) 5040 Explanation: The 7 letters word 'POVERTY' be arranged in 7P7 ways = 7! = 5040 ways.
प्र: Grey Revolution is associated with 1366 05b5cc6b4e4d2b4197774d4c0
5b5cc6b4e4d2b4197774d4c0- 1Cottonfalse
- 2Fruitsfalse
- 3Fertilizerstrue
- 4Oil seedsfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 3. "Fertilizers"
व्याख्या :
Answer: C) Fertilizers Explanation: Grey Revolution is associated with Fertilizers. Cotton - Silver fiber Revolution Fruits - Golden Revolution Oil seeds - Yellow Revolution
प्र: 12 boys decided to constribute Rs. 750 each to an Orphange. Suddenly few of them boys dropped out and consequently the rest had to pay Rs. 150 more. Then the number of boys who dropped out? 1734 05b5cc6b4e4d2b4197774d4a0
5b5cc6b4e4d2b4197774d4a0- 14false
- 26false
- 32true
- 43false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 3. "2"
व्याख्या :
Answer: C) 2 Explanation: Total money decided to contribute = 750 x 12 = 9000 Let 'b' boys dropped The rest paid 150/- more => (12 - b) x 900 = 9000 => b = 2 Hence, the number of boys who dropped out is 2.
प्र: Present ages of Deepa and Hyma are in the ratio of 5:6 respectively. After four years, this ratio becomes 6: 7. What is the difference between their present ages? 953 05b5cc6b4e4d2b4197774d4a5
5b5cc6b4e4d2b4197774d4a5- 16 yrsfalse
- 24 yrstrue
- 38 yrsfalse
- 42 yrsfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 2. "4 yrs"
व्याख्या :
Answer: B) 4 yrs Explanation: Let the present age of Deepa = 5p Let the present age of Hyma = 6p After four years their ratio = 6 : 7 => 5p + 46p + 4 = 67 => 35p + 28 = 36p + 24 => p = 4 Therefore, the difference between their ages = 24 - 20 = 4 years.
प्र: If a soldier fires 7 shots from a gun in 12 minutes then find the total number of shots fired by the man in 3/2 hrs. 4020 05b5cc6b4e4d2b4197774d49b
5b5cc6b4e4d2b4197774d49b- 145false
- 244false
- 346true
- 447false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 3. "46"
व्याख्या :
Answer: C) 46 Explanation: Here given soldier shots 7 shots in 12 min => 1 shot doen't take any time in 12 min => Only 6 shots take 12 min 12 min ------ 6 shots 90 min ------ ? shots => 90 x (6/12) = 45 Therefore, total shots fired in 90 minutes = 45 + 1 = 46 shots.
प्र: Can you Solve 7 + 7 ÷ 7 + 7 x 7 + 7 - 7 ÷ 7 + 7 x 7 = 1608 05b5cc6b4e4d2b4197774d496
5b5cc6b4e4d2b4197774d496- 1112true
- 256false
- 30false
- 498false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "112"
व्याख्या :
Answer: A) 112 Explanation: 7 + 7 ÷ 7 + 7 x 7 + 7 - 7 ÷ 7 + 7 x 7= 7 + 1 + 49 + 7 - 1 + 49= 8 + 56 + 48= 56 + 56= 112