UP Police Constable Exam Model Paper 2

The logic is:

Symbol	Meaning
÷	-
-	×
+	÷
×	+

Given expression: 3 × 19 + 1 ÷7 - 3
After interchanging symbols: 3 + 19 ÷ 1 - 7 × 3
According to BODMAS rule we have:
3 + 19 ÷ 1 - 7 × 3
= 3 + 19 - 7 × 3
= 3 + 19 - 21
= 22 - 21
= 1
Hence, 1 is the correct answer.