Two successive discounts of 30% and 70% are given. What will be the net discount (in percentage)?
Let Marked price = Rs. $$100$$
After 1st discount of 30%, price = $$100-(\frac{30}{100}\times100)$$
= $$100-30=70$$
After 2nd discount of 70% (on changed price), selling price = $$70-(\frac{70}{100}\times70)$$
= $$70-49=21$$
$$\therefore$$ Net discount % = $$\frac{(100-21)}{100}\times100=79\%$$
=> Ans - (B)
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