Thursday, July 17, 2014
Challenge Problem of the Week
Alice organized a yard sale of her old books on Saturday and Sunday, and expected to sell an equal number of books on each day. However, due to heavy rains on Saturday she could sell only 20% of her books that day. She managed to sell the rest of them on Sunday. Had she sold 36 more books on Saturday, she would have met her expectation. Find the number of books she sold altogether.
a) 80
b) 90
c) 100
d) 120
e) 150
