Latest IBM Aptitude Question SOLUTION: What is the next number of the following sequence 0.5, 2, 3, 4.5, 6.75, ?

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What is the next number of the following sequence
0.5, 2, 3, 4.5, 6.75, ?

Asked In IBM Rituparna Bhattacharyya (10 years ago)

Unsolved Read Solution (7)

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Read Solution (7) :

M V Manoj Kumar  (10 years ago)

2+(2*0.5)=3
3+(3*0.5)=4.5
4.5+(4.5*0.5)=6.75
6.75+(6.75*0.5)=10.125

Is this solution Helpfull? Yes (26) | No (9)  

Akhilesh  (10 years ago)

every second no. increasing with 1.5(plus)
so 6.75+1.5=8.25 ans

Is this solution Helpfull? Yes (15) | No (13)  

akhilesh kumar  (10 years ago)

0.5,2,3,4.5,6.75,?
2nd num div by 3rd num so 2/3=0.666666
3rd num div by 4th num so 3/4.5=0.666666
4th num div by 5th num so 4.5/6.75=0.666666
and hence 5th num div by 6th num so 6.75/x=0.666666
put the value of x =10.125
6.75/10.125=0.666666
so ans is 10.125

Is this solution Helpfull? Yes (10) | No (1)  

Thenmozhi  (10 years ago)

difference of 0.5 and 2 is 1.5
difference of 2 and 3 is 1
difference of 3 and 4.5 is 1.5(which is the multiplication of
1st and 2nd difference i.e 1.5*1=1.5)
difference of 4.5 and 6.75 is 2.25(which is the multiplication of
1st and 3rd difference i.e 1.5*1.5=2.25)
from the above hint the next number is (6.75+(1.5*2.25))=10.125

Is this solution Helpfull? Yes (4) | No (1)  

Siba Kumar Sahu  (10 years ago)

ans:
6.75+0.5*6.75=6.75+3.375=10.125

Is this solution Helpfull? Yes (4) | No (1)  

sajeev  (10 years ago)

0.5*4=(2)
0.5*[4+(2)]={3}
0.5*[6+{3}]=(4.5)
0.5*[9+(4.5)]=6.75

Is this solution Helpfull? Yes (1) | No (1)  

sajeev  (10 years ago)

0.5*4=(2)
0.5*[4+(2)]={3}
0.5*[6+{3}]=(4.5)
0.5*[9+(4.5)]=6.75
0.5*[13.5+6.75]=10.125

Is this solution Helpfull? Yes (1) | No (1)  

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