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A person buys some pen and pencil from the market at a rate such that a pencil is twice costly as pen. He sells them such that the cost of pencil is thrice the cost of a pen. By selling a pen at twice of its cost price , he makes 150% profit on the whole. find the ratio of pencils to pen? |
| Answer» A person buys some pen and pencil from the market at a rate such that a pencil is twice costly as pen. He sells them such that the cost of pencil is thrice the cost of a pen. By selling a pen at twice of its cost price , he makes 150% profit on the whole. find the ratio of pencils to pen? | |