find a single discount equivalent to two successive discounts of 20% and 10% ?
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20% of 70 is 14
so the next discount is from 56
10% of 56 is 5.6
remaining is 50.4
the equavalent discount is=100- (50.4÷70×100)
=100-72
=28%
proof (28÷100)70=19.6
70-19.6=50.4
so the next discount is from 56
10% of 56 is 5.6
remaining is 50.4
the equavalent discount is=100- (50.4÷70×100)
=100-72
=28%
proof (28÷100)70=19.6
70-19.6=50.4
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