Asked by Dan
a,b,c shared pencils in the ratio 3:5:7 respectively. If c got 12 pencils more than a, how many pencils did they share altogether?
Answers
Answered by
oobleck
7x = 3x+12
Find x, and then they received 15x in total.
Or, since 7-3 = 4, and you want the difference to be 12, multiply all the ratios by 3 and you have
9:15:21
see how c-a = 12 now?
Find x, and then they received 15x in total.
Or, since 7-3 = 4, and you want the difference to be 12, multiply all the ratios by 3 and you have
9:15:21
see how c-a = 12 now?
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