What is the number of integers from 1 to 1000 (inclusive) that are divisible by neither 20 nor by 35? Choose the correct option:
A) 567 B) 850 C) 560 D) 923 E) 240
In 1000 consecutive numbers, number of multiples of 20 = 1000/20= 
<gadget id="calculator">1000/20</gadget>
<output>50</output>
50 (Ignore decimals)   In 1000 consecutive numbers, number of multiples of 35= 1000/35 = 28   Number of multiples of 20*35 i.e. 700 = 1000/700 = 1   Number of integers from 1 to 1000 that are divisible by neither 20 nor by 35 = 1000 - (50 + 28 - 1) {Using the concept of sets here) = 923   Answer is 923
<result>D</result>
What is the number of integers from 1 to 1000 (inclusive) that are divisible by neither 20 nor by 35?