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>>> Anna University Sixth Semester Question Bank Collection (R2013) ECE,MECH,CSE,IT,EEE,CIVIL,EIE
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Probability related Questions by Balaji

consider the 4 digit no abcd what is the probability that sum of the digits is greater than or equal to 4 ?

a) 899/900

b) 1/900

c) 299/300

d) 599/600

answer choice d


case 1 sum of digits =1

case 2 sum of digits =2

case 3 sum of digits  =3

probability (sum of digits > or equal to 4) = 1-1/600




Ram selects 2 two digit no at random and mutiple them what is the chance that the product will end in zero

a) 1/3

b) 27/100

c) 28/81

d) 29/100

answer choice b


overall probability = (1539+648)/90*90






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