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Mas o menos vs comme il faut (Posted on 2021-12-04) Difficulty: 3 of 5
How many natural numbers exist in the range 142858 to 999999 inclusive, such that :
a. None of them is a multiple of 5.
b. The digit 3 is not contained in the number

D1 Please provide your estimate solution (p & p)
D3. Evaluate the exact result.

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionEstimate and exact number without computerBrian Smith2021-12-04 11:28:27
Hints/Tipsre: estimated and calculated. MY. WAYAdy TZIDON2021-12-04 10:11:08
Solutionestimated and calculatedLarry2021-12-04 08:54:53
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