self Maths Puzzle Numerical Ability Profit and Loss

A salesman expects a gain of 13% on his cost price. If in a month his sale was Rs. 791000, what was his profit?

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In two types fo stainless steel, the ratio of chromium and steel are 2:11 and 5:21 respectively. In what proportion should the two types be mixed so that the ratio of chromium to steel in the mixed become 7:32? a big big big thanxx to m4maths......placed in TCS 2 hrs before....thanxx to all u guys.....to get through in interviews just be 'Cconfident'..all the very best ....