How many even 4-digit whole numbers are there?

1358

7250

4500

3600

65536 x 47

194536 x 45

23650 x 49

11287435

45087902

64387659

12765800

59406880

50057

14400

34870

56732

How many five-digit numbers can be made from the digits 1 to 7 if repetition is allowed?

16807

54629

23467

32354

34900

26500

12000

10500

353450

638364

829440

768700

874261140

537856330

549872700

456976000

10000000

9900000

67285000

39654900

98072

27384

36428

44389

7! * 6

7C5

7!

Same area

15 *12! * 2!

15! * 2!

14C2

16 * 15!

52347

50388

87658

24976

846

2468

658

1317

876

480

654

237

Quiz/Test Summary

Title:
Fundamental Principle of Counting, Permutations and Combinations

Questions:
15

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