NIGEL RICH VE SEVIMLI MATEMATİK DUNYASI

Nigel Rich , Cambridge Universitesi'nde  Matematik Profesörü..21.yüzyılın en populer matematikçilerinden  biri...www.nrich.maths.org.uk

        WHOLE NUMBERS ONLY(september 1998)

A student bought 17 pencils for £1.44. He paid 2 pence more for each coloured pencil than for each plain pencil. How many of each kind did he buy at what price?