Fill in the blanks-
1). the sum of two consecutive odd numbers is 84, the number are ________ and________
2). A number multiplied by 6 and then reduced by 3 gives 69, the number is_______
3). The number of boys is 3/2 the number of girls in class. the total strength is 40. the number of girls is ______
1. It must be in the 40s to be consecutive. Explore for yourself.
2. Reverse the process. Add 3 to 69, then divide by 6.
3. Let x = # girls, then 2/3x = # boys.
x + 2/3x = 40, assuming that strength = number of children.