Question

 If 6 * 5 = 91 8 * 7 = 169 10 * 7 = 211 Then, 11 * 10 =?​

Answer 1

Given :-

• 6 * 5 = 91
• 8 * 7 = 169
• 10 * 7 = 211

To Find :-

• 11 * 10 = ?

Logic :-

• a * b = 3(a × b) + 1

Explanation :-

→ 6 * 5

→ 6 × 5 = 30

→ 30 × 3 = 90

→ 90 + 1 = 91

similarly,

→ 8 * 7

→ 8 × 7 = 56

→ 56 × 3 = 168

→ 168 + 1 = 169

similarly,

→ 10 * 7

→ 10 × 7 = 70

→ 70 × 3 = 210

→ 210 + 1 = 211

therefore,

→ 11 * 10 =

→ 11 × 10 = 110

→ 110 × 3 = 330

→ 330 + 1 = 331 (Ans.)