Question 667209
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Hi,
The plumber worked for 3 times as long as the painter and the painter worked 5 times as long as the electrician's hours{{{highlight(x)}}}  . 
The total wage bill was £630. How much was each man paid? 
Translate into an equation:
Electrician + Painter + Plumber 
 x + 5x + 15x = 21x
{{{ (1/21)630 + (5/21)630 + (15/21)630}}} =£630
       
Electrician {{{(1/21)*630}}} = £30 
Painter £150
Plumber £450