List of top Logical Reasoning Questions on Mathematical Reasoning asked in TS LAWCET

If \(a+b\) means \(a-b\), \(a-b\) means \(a \times b\), \(a \times b\) means \(a/b\), \(a/b\) means \(a+b\), then what is the value of \(10+30-100\times50/25\)?