Question : Directions: If 20 × 5 = 4 and 48 × 12 = 4, then 77 × 11 = ?
Option 1: 7
Option 2: 4
Option 3: 847
Option 4: 10
Correct Answer: 7
Solution :
Given:
20 × 5 = 4
48 × 12 = 4
Here, the pattern followed is –
20 × 5 = 4→20 ÷ 5 = 4
48 × 12 = 4→48 ÷ 12 = 4
Similarly, 77 × 11 = ?→77 ÷ 11 = 7
So, 7 is the required answer. Hence, the first option is correct.