Question

if 123=12; 134=20; 253=40; 261=21 then 542=? ans

Answer 1

Answer:

51

Step-by-step explanation:

First multiply all the digits and then and the digits and then add both the results

Answer 2

Answer:

542 = 51

Step-by-step explanation:

The first term is

123 = (1 × 2 × 3) + (1 + 2 + 3)

= 6 + 6 = 12

134 = (1 × 3 × 4) + (1 + 3 + 4)

= 12 + 8 = 20

253 = (2 × 5 × 3) + (2 + 5 + 3)

= 30 + 10 = 40

261 = (2 × 6 × 1) + (2 + 6 + 1)

= 12 + 9 = 21

So we see that the resulting number comes with the sum of the product of the digits and the sum of the digits.

So 542 = (5 × 4 × 2) + (5 + 4 + 2)

= 40 + 11 = 51