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6781.What is the total surface area of a cylinder having a radius of 3.5 cm and height 5.5 cm?
6782.What is the perimeter of a semi-circle lake having a radius of 700m?
6783.Roni has 25 sweets and Tony has 55 sweets. How many sweets should Roni give to Tony so that Tony has four times as many sweets as Roni?
6784.The temperature measured in Murree at noon was 16.6°C. At midnight temperature was 20.4°C lower. What was the temperature at midnight?
6785.How can the number 45 be divided into two parts such that four times one part is 9 less than 5 times the other?
6786.A man is 5 times as old as his son now. Four years ago, the product of their ages was 52. What are their present ages?
6787.John is 4 years older than David and Joe is 2 years younger than David. If the sum of their ages is 41, how old will John be in 8 years ' time?
6788.What Integer values can a have, given the inequality, -7< 4n ≤ B?
6789.When the equation, y = x²+8x-5 is written in the form = (x+a)² + b, then a is:
6790.A Student spends 15% of his scholarship grant on food and 45% on tultion. After spending 50% of the remaining grant on his hostel fee, he is left with Rs 8,000 only. How much is his scholarship grant?