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Complete the following series. e25, j100, o225, ?​​
Question

Complete the following series.
e25, j100, o225, ?​​

A.

t400

B.

q400

C.

u250

D.

m250

Correct option is A

Given: e25, j100, o225, ?
Logic: Letter is increasing + 5 and number is increasing perfect square of 5, 10, 15 and 20.
For, letter
e + 5 = j, j + 5 = o, o + 5 = t
For, number
52= 25, 102= 100, 152= 225, 202= 400
So, the missing term is t400.
Thus, correct option is (a).

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