Math

Algebra Hard 4

⏱ 10:00

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• What is the value of 1/x + 1/ (x -1) if x = 1/2?
• The HCF and LCM of two numbers are 6 and 36 respectively. If one of the numbers is 12, find the other number.
• If x is a positive integer and if remainders of 4 and 6 are obtained when 89 and 125, respectively, are divided by x then x =?
• If A + B = C, and A + C = 2B, what is the ratio of A to C?
• If y = √(x + 2), and x and y are real numbers, which of the following  CANNOT be the value of x ?
• The average age of boys in the class is twice the number of girls in the class. If the ratio of boys and girls in the class of 36 be 5:1, what is the total of the ages of the boys?
• If a,b,c are odd integers then which is even?
• A 1/5th of a pole is in mud, 1/2 of it is in water and the rest 6 feet is above water. What is the length of the pole?
• . If 12√12 = h√k, where h & k are positive integers and h > k, which of the following could be the value of h + k ?
• What number should come next in the following series: 1.5, 2.3, 3.1, 3.9, __?
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