How many 4 digit even numbers can be formed using the numbers 2,3,5,8,9?
Note: The same number can repeat. For example, 2222 must also be counted
+36916 5 choices for first digit
5 choices for 2nd digit
5 choices for 3rd digit
5 choices for 4th digit 5 x 5 x 5 x 5 = 54 = 625 numbers
Sorry ....I keep misreading Q's 625 possible numbers the ones that end in 2 or 8 are even so, I think 2/5 x 625 = 250 EVEN numbers
2222 2228 2232 2238 2252 2258 2282 2288 2292 2298 2322 2328 2332 2338 2352 2358 2382 2388 2392 2398 2522 2528 2532 2538 2552 2558 2582 2588 2592 2598 2822 2828 2832 2838 2852 2858 2882 2888 2892 2898 3222 3228 3232 3238 3252 3258 3282 3288 3292 3298 3322 3328 3332 3338 3352 3358 3382 3388 3392 3398 3522 3528 3532 3538 3552 3558 3582 3588 3592 3598 3822 3828 3832 3838 3852 3858 3882 3888 3892 3898 5222 5228 5232 5238 5252 5258 5282 5288 5292 5298 5322 5328 5332 5338 5352 5358 5382 5388 5392 5398 5522 5528 5532 5538 5552 5558 5582 5588 5592 5598 5822 5828 5832 5838 5852 5858 5882 5888 5892 5898 8222 8228 8232 8238 8252 8258 8282 8288 8292 8298 8322 8328 8332 8338 8352 8358 8382 8388 8392 8398 8522 8528 8532 8538 8552 8558 8582 8588 8592 8598 8822 8828 8832 8838 8852 8858 8882 8888 8892 8898 9222 9228 9232 9238 9252 9258 9282 9288 9292 9298 9322 9328 9332 9338 9352 9358 9382 9388 9392 9398 9522 9528 9532 9538 9552 9558 9582 9588 9592 9598 9822 9828 9832 9838 9852 9858 9882 9888 9892 9898 Total = 200 such numbers
+36916 I think you left off some numbers such as
9998 9992 9982 9928 etc
