What is the greatest number of three digits which is divisible by 5, 10, 15 ?
Choose the correct choice from the following answers: A) 985 B) 970 C) 955 D) 990 E) 999
Greatest number of 3 digits = 999   LCM of 5, 10, 15 = 30   999 ÷ 30= 33, remainder = 9   Hence, greatest number of four digits which is divisible by 5,10,15   = 999 - 9= 
<gadget id="calculator">999 - 9</gadget>
<output>990</output>
990   answer : 990
<result>D</result>
What is the greatest number of three digits which is divisible by 5, 10, 15 ?