A single discount equivalent to three successive discounts
of 20%, 25% and 10% is
a) 55% b) 50% c)48% d)46%
plz specify the method... thanks
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Answer Posted / psunil
Shortcut formula for 3 successive discount formula if successive discounts given are a, b, c then total discount is a + b + c – (ab/100 +bc/100 + ca/100 – abc/10000)
20 + 25 + 10 – [20×25/100 + 25×10/100+10×20/100 – 20×25×10/10000]
= 55 – [5 + 2.5 + 2 – 0.5]
= 55 – [9.5 – 0.5]
= 46
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