Question
Equation 1: x² + 16x + 63 = 0 Equation 2: y² +
10y + 21 = 0Solution
For Equation 1: (x + 7)(x + 9) = 0, x = -7 or x = -9. For Equation 2: (y + 7)(y + 3) = 0, y = -7 or y = -3. Comparison: x ≤ y. Answer: D) x ≤ y
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Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 27.5 m/s. Train Q starts from Dehradun to Lucknow at 1:35 pm with an averag...
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Ram needs to cover a certain distance to reach his destination. When he drives at a constant speed of 24 km/h, he arrives 2 hours later than planned. Ho...
Average speed of ‘A’ during a 20-hour journey is 20 km/h. If he covered the first 200 km of his journey at a speed of 20 km/h, then find the speed a...
Vicky and Vikram start running simultaneously around a rectangular track of length 1500m from the same point at speeds of 50 km/hr and 40 km/hr. When wi...
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Two individuals, A and B, travel from point M to point N at different speeds. A takes 6 hours to complete the journey, while B takes 8 hours. The differ...
Find the distance travelled (in km) by the truck to reach point B from point A, if a car cover 50% the same distance in 2 hours 30 minutes and a truck c...
