SSC CGL (Prelims) General: Number Series and Operators questions with solutions

Q1. A special operator is defined so that \(4 \oplus 3 = 19\) and \(5 \oplus 2 = 17\). Using the same rule, what is the value of \(6 \oplus 4\)?

1. 24
2. 28
3. 34
4. 32

Answer: 34

The pattern fits \(a \oplus b = ab + a + b\). For \(4 \oplus 3\), \(4\cdot3+4+3=19\), and for \(5 \oplus 2\), \(5\cdot2+5+2=17\). Therefore, \(6 \oplus 4 = 6\cdot4+6+4 = 34\).