Let X be the smallest positive integer such that 10 and 14 are factors of 250 + X, so the value of X is: Choose the correct choice from the following answers.
A) 0	B) 10	C) 20	D) 30	E) 40
You can calculate the LCM (10,14) = 70.   After that you should check which of the possible X values will result in a number divisible by 70.   The only possibility for this is 30 ( because 250 + 30= 
<gadget id="calculator">250 + 30</gadget>
<output>280</output>
280= 70*4)   Answer 30
<result>D</result>
Let X be the smallest positive integer such that 10 and 14 are factors of 250 + X, so the value of X is: