Larry C. answered 01/21/19
Computer Science and Mathematics professional
Rent was 1/3 or 7/21 of salary. School fee is 2/7 or 6/21 of salary. Together that is 13/21 so 8/21 was left.
8x/21 = 3200 -> 8x = 67200 -> x = 8400
Bella G.
asked 01/21/19David used 1/3 of his salary to pay rent, 2/7 to pay school fee and saved the rest. If he saved sh 3,200, how much is his salary?
Larry C. answered 01/21/19
Computer Science and Mathematics professional
Rent was 1/3 or 7/21 of salary. School fee is 2/7 or 6/21 of salary. Together that is 13/21 so 8/21 was left.
8x/21 = 3200 -> 8x = 67200 -> x = 8400
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