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
One possible combination of three numbers that multiply to equal 6000 is 10, 15, and 40, since 10 × 15 × 40 = 6000. Another combination could be 20, 30, and 10, as 20 × 30 × 10 also equals 6000. There are many other combinations as well, depending on the factors chosen.
There are 5245786 possible combinations and I am not stupid enough to try and list what they are!
5
There are 12,033,222,880 of them.
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
One possible combination of three numbers that multiply to equal 6000 is 10, 15, and 40, since 10 × 15 × 40 = 6000. Another combination could be 20, 30, and 10, as 20 × 30 × 10 also equals 6000. There are many other combinations as well, depending on the factors chosen.
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).
One possible set of three numbers that multiply to get 200,000 is 10, 20, and 1000. Another option is 5, 40, and 1000. Additionally, you could use 8, 25, and 1000. There are many combinations that can achieve this product.