Question

If a number is divisible by 3, then x in 3x51 should have​

Answer 1

Answer:

0

Step-by-step explanation:

see x=0 coz 3+x+5+1

3+0+5+1=9

9÷3=3

Answer 2

Step-by-step explanation:

Rule of divisibility for 3 is sum of digits should divisible by 3

3x51= 3+x+5+1=9+x

x=3

9+3=12 is divisible by 3

x=6

9+6=15 is divisible by 3

x=9

9+9=18 is divisible by 3

so number can be 3351 or 3651 or 3951

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