Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?
Solve the mathematical equation in the picture below.
You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth. How long would it take for the machine to cut the roll if each cut took 4 secs?
Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error? x = 9.999999... 10x = 99.999999... 10x - x = 90 9x = 90 x = 10
The product of three consecutive numbers is 7980. Then the sum of these consecutive numbers would be?
What number divided by 4 is the same as that number minus 4?
Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3. (You can use one number only once)
Replace the (?) with the correct mathematical signs to make the expression equal to 59. 18 ? 12 ? 4 ? 5 = 59
Look at this sequence from top to bottom. What is the next number in the sequence? 1 11 21 1211 111221 312211
Can you find the missing number in the third row? 35 20 14 27 12 18 5 2 ?
Our product and our sum always give the same answer. Who are we?
The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.
