Let e and f be the events that a family of n children has children of both sexes and has at most one boy, respectively. are e an
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Answer:
The price of item after successive discounts are 20% and 30% is $140.
Step-by-step explanation:
The marked price of item is $250.
Two successive discounts are 20% and 30%.
Price of item after discounts of 20% is
New price of item after first discount is $200.
Price of item after second discount, i.e., 30% is
Therefore, the price of item after successive discounts are 20% and 30% is $140.