The answer is 40!/[10!*(40-10)!] where n! represents 1*2*3*...*n.
The number of combinations = 40*39*38*37*36*35*34*33*32*31/(10*9*8*7*6*5*4*3*2*1) = 847,660,528
5
You can add the numbers 10, 10, 10, and 10 to get 40. Alternatively, you could use numbers like 5, 15, 10, and 10, or even 1, 2, 3, and 34. There are numerous combinations that can result in a sum of 40.
Assuming that repeated numbers are allowed, the number of possible combinations is given by 40 * 40 * 40 = 64000.If repeated numbers are not allowed, the number of possible combinations is given by 40 * 39 * 38 = 59280.
80
There are (42*41*40*39*38*37)/(6*5*4*3*2*1) = 5 245 786 combinations.
5
There are 12,033,222,880 of them.
There are 5245786 possible combinations and I am not stupid enough to try and list what they are!
You can add the numbers 10, 10, 10, and 10 to get 40. Alternatively, you could use numbers like 5, 15, 10, and 10, or even 1, 2, 3, and 34. There are numerous combinations that can result in a sum of 40.
Assuming that repeated numbers are allowed, the number of possible combinations is given by 40 * 40 * 40 = 64000.If repeated numbers are not allowed, the number of possible combinations is given by 40 * 39 * 38 = 59280.
80
There are (42*41*40*39*38*37)/(6*5*4*3*2*1) = 5 245 786 combinations.
(43*42*41*40*39)/(5*4*3*2*1) = 962598
By making a number tree that could have as many as 1,000,000 combos.
18. 18 x 3 = 54. However, since the question asks for even numbers, many other combinations would qualify (e.g. 40 + 8 + 6, 32 + 12 = 10).
To make 80 using numbers between 3 and 25, you can use addition, multiplication, or combinations of both. For example, the pairs (55, 25), (40, 40), and (30, 50) can be used in addition, while multiplication allows for combinations like (4 × 20) or (8 × 10). Additionally, you can find combinations of multiple numbers (like 20 + 20 + 20 + 20) to reach 80. However, the specific combinations will depend on how strictly you interpret the use of numbers.
There are 8 prime numbers between 10 and 40: 11 13 17 19 23 29 31 37.