If you want to improve your mathematical skills and challenge your brain, these 100+ math riddles are for you. From basic arithmetic to advanced algebra, these math puzzles and math equations will test your problem solving abilities and help you hone your math skills. These riddles are a fun and engaging way to improve your math skills. Check your answers against the provided solutions or try to solve them all on your own. Either way, you'll be sure to have a good time while you're at it.
You are given 3 positive numbers. You can add these numbers and multiply them together. The result you get will be the same. Which are the numbers?
1, 2, and 3.
Explanation : 1,2 and 3 As: 1+2+3=6 and 1*2*3=6 1,2 and 3 are the positive integers and the result of their addition and their multiplication is same.
John, Mark, and Henry are three brothers. Interestingly, their current age is prime. What's more interesting is that difference between their ages is also prime. How old are they?
Mark is 2, John is 5, and Henry is 7.
Explanation : Age diff, 7 - 2 = '5' is prime; 7 - 5 = '2' is prime; 5 - 2 = '3' is prime.
Janie's friends were chipping in to buy her a wedding shower present. At first, 10 friends chipped in, but 2 of them dropped out. Each of the 8 had to chip in another dollar to bring the amount back up. How much money did they plan to collect?
Explanation : $40 (10 at $4, or 8 at $5)
When John was six years old he hammered a nail into his favorite tree to mark his height. Ten years later at age sixteen, John returned to see how much higher the nail was. If the tree grew by five centimeters each year, how much higher would the nail be?
Explanation : The nail would be at the same height since trees grow at their tops.
How many circles contain the black dots?
Explanation : If you look carefully at the image, you'll see that the dots are placed in intersection of many circles. So, The correct answer is 12.
Given that the weight of a Rabbit and a Duck is 10 kilograms, the weight of a Dog and a Rabbit is 20 kilograms, and the weight of a Dog and a Duck is 24 kilograms, what is the total weight of a Dog, a Rabbit, and a Duck?
Explanation : Let the duck be ‘Du’ The dog be ‘Do’ The rabbit be ‘R’. From the above picture, we can form equations as, R + Du = 10kg.…equation (1) R + Do = 20kg….equation (2) Do + Du = 24kg…equation (3) & R + Do + Du = ? Rearranging the equations, equation (1) = R + Du = 10kg Du = 10kg – R equation (2) = R + Do = 20kg Do = 20kg – R Putting the values of Do & Du in equation (3), Do + Du = 24kg 20kg – R + 10kg – R = 24kg 30kg – 2R = 24kg 2R = 6 Rabbit, R = 3kg Substituting the value of R, in equation (1) & equation (2) We get, equation (1), R + Du = 10kg 3 + Du = 10kg Duck, Du = 7kg Also, equation(2), R + Do = 20kg 3 + Do = 20kg Dog, Do = 17kg. Adding the values of, Do + Du + R = 3 + 7 + 17 Dog + Duck + Rabbit = 27kg.
Can you solve this?
Explanation : 2/1 =2 2*1 = 2 2-1= 1 so answer is 1
Move just 2 matchsticks to make the equation Correct.
Explanation : 9-9=0. Move one from the addition sign to make it a subtraction sign, and put it to 3 to make 9, 2. move one from 8 to make it 9.
Can you find the missing number?
Explanation : horizontal multiplication - vertical multiplication 6*6 - 7*5 = 1 for answer 7*3 - 9*2 = 3
Which number will replace the question mark?
Explanation : just put the values of the balls and add them you will get 15
How many triangles can you count in this shape?
Explanation : Count step by step without leaving any triangle formation
A merchant can place 8 large boxes or 10 small boxes into a carton for shipping. In one shipment, he sent a total of 96 boxes. If there are more large boxes than small boxes, how many cartons did he ship?
Explanation : 7 large boxes (7 x 8 = 56 boxes) 4 small boxes (4 x 10 = 40 boxes) So the answer is 11 total cartons for 96 boxes
A 35 year old woman has 3 children. If you multiply the 3 children's ages, you get 36. If you add up the children's ages it's 13. And her oldest child plays basketball for 3 years. How old are the kids?
They are 2, 2, and 9.
Explanation :
If you list out the trio of factors that multiply to 36, you get: 1 1 36 = 38 1 2 18 = 21 1 3 12 = 16 1 4 9 = 14 6 6 1 = 13 2 2 9 = 13 2 3 6 = 11 3 3 4 = 10 If the sum is 13, as you can see, there are 2 options. When she sa ys her 'oldest' you know it cannot be {6, 6, 1} since she would have two 'older' sons, not an 'oldest'.
Can you find the value of the missing number?
Explanation : The outer number is the sum of the numbers in the two segments immediately across the line connecting big Circle to small Circle. i.e. 5+6=11, 6+2=8, 2+8=10, 8+1=9, 1+4=5, 4+7=11, 7+9=16 therefore, 9+5 =14
Can you find the number?
Explanation : first digit * first digit third digit * third digit 398 = 964 (3*3 8*8). So 423 = 169 (4*4 3*3)