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4781.If a bus travels 150 meters in 15 seconds, what is its speed?
4782.The notation of n√x^m in power form is?
4783.If log b ^a/log b ^d is equal to _____?
4784.(a + b)² + (a - b)² = _____?
4785.Find the next number in the sequence: 2, 12, 30, 56, 90, ( ? )
4786.An electrical pole of 12 m height is stretched by a string of 20 m. Find the distance between the foot of the pole and the end point of the string on the ground?
4787.If x̄ = 12, and ∑ x = 132, then n = _____?
4788.A man bought apples at the rate of 8 for Rs. 34 and sold them at the rate of 12 for Rs. 57. How many rupees profit was made per dozen?
4789.A contractor estimates that 3 persons could rewire Jamal's house in 4 days. If he uses 4 persons instead of three, how long should they take to complete the job?
4790.A father is three times as old as his son. After fifteen years, the father will be twice as old as his son's age at that time. Hence, the father's present age is ______?