Divisibility Rule of 9: if the sum of digits of the number is divisible by 9 , then the number is divisible by 9 . Divisibility Rule of 4: If the last two digits of a number are divisible by 4 , the number is divisible by 4 . Calculation: 36=9×4 If any number is divisible by 9 and 4 , then the number itself is divisible by 36 also. We need to check it by option. Option 1: Number =47502 To check the divisibility with 9 . The sum of digits =4+7+5+0+2=18 18 is divisible by 9 . So the number is also divisible by 9 . To check the divisibility with 4. The last two digits =02 02 is not divisible by 4 . So the number is not divisible by 4 . 47502 is not divisible by 36 . Option 2: Number =29412 To check the divisibility with 9 . The sum of digits =2+9+4+1+2=18 18 is divisible by 9 . So the number is also divisible by 9 . To check the divisibility with 4. The last two digits =12 12 is divisible by 4 . So the number is divisible by 4 . 29412 is divisible by 36 .