If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, what will come in place of the question mark ‘?’ in the following equation?

18 A 18 D 27 C 4 B 31 = ?

This question was previously asked in
AAI Junior Assistant (Fire Service) Official Paper (Held On: 21 Apr, 2025 Shift 1)
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  1. 96
  2. 98
  3. 100
  4. 99

Answer (Detailed Solution Below)

Option 2 : 98
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Detailed Solution

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According to the question:

Symbols A B C D
Meaning ÷ × +

Now,

Given equation: 18 A 18 D 27 C 4 B 31 = ?

After replacing the symbols with their meanings:

18 ÷ 18 - 27 + 4 × 31

⇒ 1 - 27 + 4 × 31

1 - 27 + 124

-26 + 124

⇒ 98

Hence, the correct answer is "Option 2".

Latest AAI Junior Assistant Updates

Last updated on Apr 24, 2025

-> The AAI Junior Assistant Response Sheet 2025 has been out on the official portal for the written examination.

-> AAI has released 168 vacancies for Western Region. Candidates had applied online from 25th February to 24th March 2025.

-> A total number of 152 Vacancies have been announced for the post of Junior Assistant (Fire Service) for Northern Region.

-> Eligible candidates can apply from 4th February 2025 to 5th March 2025. 

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-> Prepare for the exam with AAI Junior Assistant Previous year papers.

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