arrow
arrow
arrow
What will come in the place of the question mark (?) in the following equation, if ‘÷’ and ‘−’ are interchanged and ‘×’ and ‘+’ are interchanged? 15
Question

What will come in the place of the question mark (?) in the following equation, if ‘÷’ and ‘−’ are interchanged and ‘×’ and ‘+’ are interchanged?
15 + 7 ÷ 7 × 48 − 2 + 23 × 4 = ?

A.

612

B.

716

C.

559

D.

654

Correct option is D

Given: 15 + 7 ÷ 7 × 48 − 2 + 23 × 4 = ?

Given Sign
÷
×
Interchanged Sign
-
+

Logic: BODMAS  
Operation preference wiseSymbolBrackets[],,()Orders, of(power),(root),ofDivision÷Multiplication×Addition+Subtraction\begin{array}{|c|c|} \hline\textbf{Operation preference wise} & \textbf{Symbol} \\\hline\text{Brackets} &[],{}, () \\ \hline \text{Orders, of} & (power), √ (root) , of \\ \hline \text{Division}& ÷ \\ \hline \text{Multiplication} & × \\ \hline \text{Addition} & + \\ \hline \text{Subtraction} & - \\\hline\end{array}​​

New Equation: 15 × 7 - 7 + 48 ÷ 2 × 23 + 4 = ?
15 × 7 - 7 + 24 × 23 + 4 = ?
105 - 7 + 552 + 4 = ?
661 - 7  = ?
? = 654
Thus, the correct option is (D)

Free Tests

Free
Must Attempt

CBT-1 Full Mock Test 1

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC Graduate Level PYP (Held on 5 Jun 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

CBT-1 General Awareness Section Test 1

languageIcon English
  • pdpQsnIcon40 Questions
  • pdpsheetsIcon30 Marks
  • timerIcon25 Mins
languageIcon English

Similar Questions

test-prime-package

Access ‘RRB NTPC UG CBT-1’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
354k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow