In a shop, the profit is 150% of the cost. If the cost increases by 15% but the selling price remains constant, find out approximately what percentage of the selling price is the profit?
Mathematics is like checkers in being suitable for the young, not too difficult, amusing, and without peril to the state.
Plato
Mathematics has 25%formulas, 25%proofs and apply 25%thinking and 25%efforts.
In real life situations proofs are nothing but already existed stories(we know the solutions from all experienced people).
formulas are nothing but goals. we have so many goals b