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Numerical Ability
Probability
Find the probability if a two digit number multiplied by 3 but not 5
Read Solution (Total 4)
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- sample space of 2 digit number = (99-10)+1 = 90
probability of number multiplied by 3 but not 5 = total no. multiplied by 3 - total no. multiplied by 5
= 30 - 6=24
so, probability= 24/90 = 4/15 - 9 years agoHelpfull: Yes(5) No(0)
- 4/15
Total two digit numbers are 90 i.e. from 10 to 99
numbers multiple of 3 are 12, 15, 18, ......., 99 so 12+(n-1)3=99, n=30
numbers multiple of 3 & 5 both are 15,30,45,60,75,90 total 6
So two digit numbers multiple of 3 but not of 5 are 30-6=24
Probability=24/90=4/15 - 9 years agoHelpfull: Yes(1) No(0)
- Ans : 24/30 = 4/5
2 digits numbers with 3 as factor = 30 (100/3 - 3)
2 digit numbers with 3 and 5 as factor i.e factor 15 = 100/15=6
So probablity = No of numbers with 3 as factor and not 5 / Total No of numbers with 3 as factor
=24/30=4/5 - 9 years agoHelpfull: Yes(0) No(0)
- I think A must be zulu...why??....cz he said that he can be a zulu or a hutu....he gave two options....never mentioned exact one...dats why he s d zule for sure...;)
Den B told the damn truth about A....so he can be zulu...
now what about C.....
If A is considered to be zulu....den C has to be hutuuuuuuuuuuuuuuuu.............
......Got it??
- 8 years agoHelpfull: Yes(0) No(0)
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