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2121.Madiha is n year old. Samee is 6 years younger than Madiha and 2 years older than Javid. What is the sum of the ages of all the three?
2122.If there are 27 students in class and 7 girls are more than boys. How many total girls are in class?
2123.If the sum of a, b and c is twice the sum of a - b and a - c and the difference of a + b and a - c is 3 then the value of a is?
2124.There are 40 minutes to solve a test of 60 minutes. A student completes 20 questions in 20 minutes. He continues with the same speed and leaves the hall 10 minutes earlier. The number of questions solved by him is?
2125.A man earned Rs. 5000 for his first 40 hours of work in a week and is then pain double of his regular hourly rate. He earned Rs. 6000 in a week. How many hours he worked in that week?
2126.The tangent at any point of the circle to the radius through the point of contact is?
2127.The domain of f(x) = 1/x+2 is _____?
2128.If 7x + 3 = 24, the value of 5 - 4x is _____?