Which number will come in the place of the question mark (?) $ 49 \times 7 – 6 \div 2 +15 = ? $
Which number will come in the place of the question mark (?) in the following equation if ‘+’ and ‘-‘ are interchanged and $’\times $ and $’\div’$ are interchanged?
उस विकल्प का चयन कीजिए जो पाँचवें अक्षर-समूह से उसी प्रकार संबंधित हो, जिस प्रकार दूसरा अक्षर-समूह पहले अक्षर-समूह से तथा चौथा अक्षर-समूह तीसरे अक्षर-समूह से संबंधित है।
$ 49 \times 7 – 6 \div 2 +15 = ? $
Detailed Solution & Logic
4
Solution:
Interchange the signs:
- $\times \leftrightarrow \div$
- $+ \leftrightarrow -$
The equation becomes:
$49 \div 7 + 6 \times 2 - 15$
Now apply BODMAS:
= 7 + 12 - 15
= 19 - 15
= 4
Answer: 4 ✅
Similar Practice Questions
Which two mathematical symbols need to be interchanged to balance the given equation?
Which two mathematical symbols need to be interchanged to balance the given equation? दिए गए...
If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’,
If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’...
If ‘A’ means ‘\(\div\), ‘B’ means ‘\(\times\)’, ‘C’ means ‘+’
If ‘A’ means ‘\(\div\), ‘B’ means ‘\(\times\)’, ‘C’ means ‘+’ and ‘D’ means ‘-‘, then...
If % = division, $ = addition, @ = subtraction,
If % = division, $ = addition, @ = subtraction, and # = multiplication, evaluate...
Which two signs should be interchanged
Which two signs should be interchanged to make the given equation correct? दिए गए समीकरण...
Which two numbers (not digits) should be
Which two numbers (not digits) should be interchanged to make the given equation correct? दिए...
If @ = -, % = ×,# = +; then 10% 2 @ 4# 3 = ?
If @ = -, % = ×,# = +; then 10% 2 @ 4# 3...