engineering recuitment OSSC Combined Technical Services (ଓଡିଶା) Mock Test 2023-24 Logical Reasoning Puzzle Logical Puzzle
Which two numbers should be interchanged to make the given equation correct?
63 ÷ 21 - 42 + 8 × 7 = 135
1
21 and 42
2
21 and 8
3
7 and 63
4
7 and 21