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Question: If a train travels 300 km in 5 hours, what is its average speed?Options: 50 km/h60 km/h70 ..
Question: What is the average of the numbers 10, 20, 30, 40, and 50?Options: 30253540Correct Answer:..
Question: A person bought a bicycle for $200 and sold it for $180. What is the percentage loss?Optio..
Question: If a person invests $1000 at a simple interest rate of 5% per annum, how much interest wil..
Question: A shopkeeper bought a shirt for $40 and sold it for $50. What is the percentage profit?Opt..
Question: If vector A = 5i + 5j and vector B = 5i - 5j, what is the angle between A and B?Options: 0..
Question: If A = 1i + 1j + 1k and B = 1i + 2j + 3k, find A · B.Options: 6543Correct Answer: 6Solutio..
Question: Given A = 2i + 2j and B = 3i + 3j, what is the scalar product A · B?Options: 12181014Corre..
Question: If A = 5i - 2j + k and B = 3i + 4j - 2k, calculate A · B.Options: -1102Correct Answer: -1S..
Question: For vectors A = 6i + 8j and B = 2i + 3j, find A · B.Options: 42483630Correct Answer: 42Sol..
Question: If A = 2i + 3j and B = 3i + 4j, what is the scalar product A · B?Options: 18202216Correct ..
Question: Find the angle θ between vectors A = 4i + 3j and B = 1i + 2j if A · B = |A||B|cos(θ).Optio..
Question: If A = 7i - 3j and B = -2i + 5j, what is the value of A · B?Options: -29-31-25-27Correct A..
Question: Given vectors A = i + 2j + 3k and B = 2i + 3j + 4k, calculate A · B.Options: 20222426Corre..
Question: If A = 5i + 2j + 3k and B = 4i - j + 2k, find the scalar product A · B.Options: 26283024Co..
Question: A mixture contains 30% sugar and 70% water. If 5 liters of the mixture is taken out, how m..
Question: In a mixture of 100 liters, the ratio of oil to water is 1:4. How much oil is in the mixtu..
Question: A mixture of two types of nuts contains 40% cashews and 60% almonds. If 50 kg of the mixtu..
Question: A container has 80 liters of a solution that is 10% acid. If 20 liters of this solution is..
Question: If 15% of a mixture is water and the rest is milk, what is the ratio of milk to water in t..
Question: A mixture of two liquids A and B is in the ratio 3:2. If the total volume of the mixture i..
Question: A solution is made by mixing 60 liters of a 20% salt solution with 40 liters of a 30% salt..
Question: If a mixture of 40 liters contains 25% sugar, how much sugar is in the mixture?Options: 5 ..
Question: A mixture contains 30% alcohol and 70% water. If 10 liters of the mixture is taken out, ho..
Question: If sin x = 0.6, what is the value of cos x?Options: 0.80.60.40.5Correct Answer: 0.8Solutio..
Question: What is the value of (3x + 4)(3x - 4)?Options: 9x² - 169x² + 1612x² - 1612x² + 16Correct A..
Question: What is the expansion of (x + 2)(x - 2)?Options: x² - 4x² + 42x² - 4x² - 2Correct Answer: ..
Question: If a = 2 and b = 5, what is the value of (a + b)²?Options: 49253664Correct Answer: 49Solut..
Question: Which of the following is the correct expansion of (x - 3)²?Options: x² - 6x + 9x² + 6x + ..
Question: The scores of five students are: 20, 22, 24, 26, 28. Calculate the variance. (2020)Options..