Math, asked by jasvirdhaliwal0230, 1 day ago

the number 21x 5 is divisible by 3 then the digit place of x is please give me correct answer step by step​

Answers

Answered by saravananmaya1
1

Since a five-digit number is formed by using digits 0,1,2,3,4 and 5, divisible by 3 i.e., only possible when the sum of digits is multiple of three which gives two cases.

Case I: Using digits 0,1,2,4,5 the number of ways =4×4×3×2×1=96.

Case II: Using digits 1,2,3,4,5 the number of ways =5×4×3×2×1=120

Therefore, total number formed =120+96=216.

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