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Explications étape par étape:
1+5=6 6×3=18
2+7=9. 9×3=27
4+9=12. 12×3=36
5+10=15. 15×3=45
then
4+20=24. 24×3=72
(1 + 5 = 18)(2 + 7 = 27)(3 + 9 = 36)(5 + 10 = 45)Let's analyze the relationship between the inputs and the outputs.The pattern appears to be: [ n + m = (n \times 2) \times 10 + (n + m) ]Let's check this:(1 + 5 = 18): [ 1 \times 2 = 2 ] [ 2 \times 10 + (1 + 5) = 20 + 6 = 26 ] This doesn't quite match, so let's adjust our approach.Notice that in each case: [ n + m = (n \times (m - n)) ]Check the pattern again:(1 + 5 = 18): [ 1 \times (5 - 1) = 1 \times 4 = 4 ] (10 + 8 = 18)(2 + 7 = 27): [ 2 \times (7 - 2) = 2 \times 5 = 10 ] (20 + 7 = 27)(3 + 9 = 36): [ 3 \times (9 - 3) = 3 \times 6 = 18 ] (30 + 6 = 36)(5 + 10 = 45): [ 5 \times (10 - 5) = 5 \times 5 = 25 ] (40 + 5 = 45)Now, using the same pattern:[4 + 20 = 4 \times (20 - 4) = 4 \times 16 = 64]The result should be (64).Therefore: [4 + 20 = 64]
