CAT Preparation – Linear Equations Questions 05

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Question: a1x + b1y + c1z = d1 a2x + b2y + c2z = d2 a3x + b3y + c3z = d3 Which of the following statements, if true, would imply that the above system of equations does not have a unique solution? (i) a1/a2 = b1/b2 = c1/c2...

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CAT Preparation – Linear Equations Questions 04

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Question: Traders A and B buy two goods for Rs. 1000 and Rs. 2000 respectively. Trader A marks his goods up by x%, while trader B marks his goods up by 2x% and offers a discount of x%. If both make the same non-zero profit, find x. (a) 25%...

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CAT Preparation – Linear Equations Questions 03

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Question: (|x| – 3) (|y| + 4) = 12. How many pairs of integers (x, y) satisfy these two equations? (a) 4 (b) 6 (c) 10 (d) 8 DETAILED SOLUTION f x and y are integers, so are |x| –3 and |y| + 4. So, we start by finding...

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