Question

How many three digit numbers can be formed from 2 3 4 5 without repetition?

Answer 1

234
235
243
245
253
254
324
325
342
345
352
354
423
425
432
435
452
453
523
524
532
534
542
543
There are 24 no

Answer 2

The number can be formed by 2 :

234
243
235
253
245
254


The number can be formed by 3 :

324
342
325
352
354
345

The number can be formed by 4 :

432
423
435
453
452
425

The number can be formed by 5 :

523
532
534
543
542
524



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