2 oranges , 3 bananas and 4 apples cost Rs .15 . 3 oranges 2 bananas 1 apple costs Rs10 . What is the cost of 3 oranges , 3 bananas and 3 apples ?
A basket contains 10 apples and 20 oranges out of which 3 apples and 5 oranges are defective . If we choose two fruits at random , what is the probability that either both are oranges or both are non defective ?