What is the result if you take forty, divide it by one-half, and then add fifteen?
95
Dividing by one-half (0.5) is equivalent to multiplying by 2. Thus, 40 / 0.5 = 80. Adding 15 gives 80 + 15 = 95.
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Easy. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
More math riddles
Train A leaves a station traveling at 60 mph. Exactly one hour later, Train B leaves the same station on a parallel track at 90 mph. How far from the station will Train B overtake Train A?
A farmer looks out at his field of chickens and cows. Counting heads, he sees 30. Counting legs, he sees 86. How many cows are in the field?
3 elves each wrap 8 presents an hour. How many presents do they wrap in 2 hours?
Half of the 16 dinner rolls on the table are taken away. How many dinner rolls are left on the table?
Kai puts 9 acorns in each of 6 boxes. How many acorns is that altogether?
Omar has 18 countdown cards and Leo has 7. How many more countdown cards does Omar have?