What will come in the place of the question mark (?) in the following equation if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
15 − 5 + 18 × 6 ÷ 3 = ?

This question was previously asked in
RPF Constable 2024 Official Paper (Held On 03 Mar, 2025 Shift 2)
View all RPF Constable Papers >
  1. 11
  2. 16
  3. 1
  4. 29

Answer (Detailed Solution Below)

Option 1 : 11
Free
RPF Constable Full Test 1
3.9 Lakh Users
120 Questions 120 Marks 90 Mins

Detailed Solution

Download Solution PDF

Given equation: 15 − 5 + 18 × 6 ÷ 3 = ?

After interchanging ‘+’ and ‘−’ and ‘×’ and ‘÷’, we get:

15 + 5 − 18 ÷ 6 × 3 = ?

= 15 + 5 − 3 × 3

= 15 + 5 − 9

= 20 − 9

= 11

Hence, the correct answer is "Option 1".

Latest RPF Constable Updates

Last updated on Jul 16, 2025

-> More than 60.65 lakh valid applications have been received for RPF Recruitment 2024 across both Sub-Inspector and Constable posts.

-> Out of these, around 15.35 lakh applications are for CEN RPF 01/2024 (SI) and nearly 45.30 lakh for CEN RPF 02/2024 (Constable).

 

-> The Examination was held from 2nd March to 18th March 2025. Check the RPF Exam Analysis Live Updates Here.

More Logical Puzzle Questions

Get Free Access Now
Hot Links: teen patti gold new version 2024 teen patti real cash 2024 teen patti apk download teen patti master purana