9. The least number which should be added to 28523 so that the sum is exactly divisible by 3, 5, 7 and 8 is Select:
A) 41 B) 42 C) 32 D) 37 E) 39
LCM of 3, 5, 7 and 8 = 840   28523 ÷ 840 = 33 remainder = 803   Hence the least number which should be added = 840 - 803= 
<gadget id="calculator">840 - 803</gadget>
<output>37</output>
37 Answer: Option 37
<result>D</result>
9. The least number which should be added to 28523 so that the sum is exactly divisible by 3, 5, 7 and 8 is