QOTD-Logical Reasoning-Analogy and Number Series


2019-06-29 | Team PendulumEdu

The numbers given below follows a certain pattern. Study the pattern and choose the number which will replace the question mark?

1.15, 3.30, 7.60, 14.20, ?

   A. 22.40

   B. 23.40

   C. 21.60

   D. 22.50

Correct answer (B)

Consider the given series

1.15, 3.30, 7.60, 14.20, ?

 

Thus,

X = 14.20 + 8 + (0.15 x 8)

X = 23.40

In the type of question where the numbers are in decimal try solving the question by adding or subtracting the decimal value or the multiples of the decimal values. As seen here the multiples of 0.15 are added with the elements of an increasing arithmetic progression of 2, 4, 6, 8 and so on.

Hence, (b) is the correct answer.

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