Latest IBM Aptitude Question SOLUTION: 28,14,15,22.5,24.5,61.25,64.25,?

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(#M40154891) IBM Logical Reasoning question number series Keep an EYE

28,14,15,22.5,24.5,61.25,64.25,?

Asked In IBM saikrishna111 (8 years ago)

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Read Solution (8) :

Sanjeet Kumar   (8 years ago)

28*0.5=14
15*1.5=22.5
24.5*2.5=61.25
64.25*3.5=224.875(Ans)

Is this solution Helpfull? Yes (58) | No (1)  

Umair Aslam  (8 years ago)

Focus on the elements 1, 2 and 3 first:
28 14 15
28 * 0.5 = 14
14 + 1 = 15

Now focus on elements 3, 4 and 5.
15 22.5 24.5
15 * 1.5 = 22.5
22.5 + 2 = 24.5

We multiple the elements at even slots with 0.5, 1.5, 2.5, 3.5 ... and add 1, 2, 3, 4, .... to the elements at odd slots.

24.5 * 2.5 = 61.25
61.25 + 3 = 64.25
64.25 * 3.5 = 224.875

The answer is 225.875.

Is this solution Helpfull? Yes (13) | No (3)  

Shail Singh  (8 years ago)

28*0.5=14
15*1.5=22.5
24.5*2.5=61.25
64.25*3.5=224.875

Is this solution Helpfull? Yes (3) | No   

vani  (8 years ago)

Ans:108.35

Is this solution Helpfull? Yes (2) | No (12)  

APARUP CHATTERJEE  (8 years ago)

Multiply each number after 1's gap with the sequence of (0.5, 1+.05 , 2+0.5 , 3+0.5 , 4+0.5........................................)
28*0.5=14
15*1.5=22.5
24.5*2.5=61.25
64.25*3.5=224.875 ans.

Is this solution Helpfull? Yes (1) | No   

Olga  (8 years ago)

576 = 24*24

Is this solution Helpfull? Yes (1) | No (3)  

SHUBHAM JAIN  (7 years ago)

28*0.5=14
15*1.5=22.5
24.5*2.5=61.25
64.25*3.5=224.875(Ans)

Is this solution Helpfull? Yes (1) | No   

AYANABHA PAL  (7 years ago)

The next nos. are 4,3,4 as 2+1=3 so likewise 3+1 =4 also 13- 5 = 8 hence
8- 5= 3 so answer is proved

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