Question

Find the missing number in the following series 25, 37.5, 56.25, ?, 126.625​

Answer 1

Answer:

84.375

Step-by-step explanation:

56.25 / 2 = 28.125

28.125 + 56.25 = 84.375

The series starts with 25 and goes on adding the previous number to its half.

Answer 2

Given : 25, 37.5, 56.25, ?, 126.625​

To Find : missing number

Solution:

25

25 * 1.5  = 37.5

37.5 * 1.5 = 56.25

56.25 * 1.5 = 84.375

84.375 * 1.5 = 126.625

Tₙ₊₁ = 1.5Tₙ   where T₁ = 25

Hence Missing term is  84.375

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