sentence1: How many 3 digit numbers can be formed from the digits 2 , 3 , 5 , 6 , 7 and 9 which are divisible by 5 and none of the digits is repeated ?
sentence2: How many 3-digit numbers can be formed from the digits 2 , 3 , 5 , 6 , 7 and 9 , which are divisible by 5 and none of the digits is repeated ?