A box contains 35 mangoes out of which 8 are spoilt. If eight mangoes are chosen at random, find the probability that A number is selected at random from first hundred natural numbers. What is the chance that it is a multiple of either 11 or 15? Choose the correct choice:	A) 5/20	B) 3/20	C) 7/20	D) 11/20	E) 9/20
The probability that the number is a multiple of 11 is 9/100. (Since 11*9= 
<gadget id="calculator">11*9</gadget>
<output>99</output>
99).   Similarly the probability that the number is a multiple of 15 is 6/100. {Since   15*6= 
<gadget id="calculator">  15*6</gadget>
<output>90</output>
90).   Neither 11 nor 15 has common multiple from 1 to 100. Hence these events are mutually exclusive events. Therefore chance that the selected number is a multiple of 11 or 15 is (9+6)/100= 3/20.   ANSWER:3/20
<result>B</result>
A box contains 35 mangoes out of which 8 are spoilt. If eight mangoes are chosen at random, find the probability that A number is selected at random from first hundred natural numbers. What is the chance that it is a multiple of either 11 or 15?