Question

2 ,3,9=161
4,2,5=375
1,4,6=54
7,8,1=?​

Answer 1

The value of missing number = 619

Step-by-step explanation:

We have,

2 , 3, 9 = 161

4, 2, 5 = 375

1, 4, 6 = 54

To find the value of missing number 7, 8 , 1 = ?​

The pattern follow:

a, b , c = abc - 2 × bc

161  = 239 - 2 × 39 = 239 - 78 = 161

375 = 425 - 2 × 25 = 425 - 50 = 375

54 = 146 - 2 × 46 = 146 - 92 = 54

Similarly,

? = 781 - 2 × 81 = 781 - 162 = 619

Hence, the value of missing number = 619