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5421.If a runner can cover 240m distance in 8 minutes. How much time will be required to cover 330m of existance?
5422.If 5x - 8 = -23, then x = ______?
5423.Age of father is 13 times the age of his son. It will be only five times after four years. Find the present age of the father?
5424.In logarithmic form y = a² can b written as?
5425.In x√a, a is called the ____?
5426.Find y, if (2x, x + y) = (6, 2)?
5427.What is the length of the side of a square whose area is 289²?
5428.(-2)⁴ ---- -2⁴.
5429.Which statement is false? Every real number is either a rational or irrational number, Every whole number is natural number, All natural numbers are integers, All integers are rational numbers