01-03-2016
Mathematics

contestada

if 1+4=5, 2+5=12, 3+6=21 then 8+11=?

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proporciones proporciones

01-03-2016

debe ser 40.porque la secuencia es 5 *resultado del primer ejemplo le sumas el segundo ejemplo q es 7.por lo tanto 5y 7 son 12. tercer ejemplo 3 + 6 = 9 Entonces su + 9 + 12 = 21 cuarto ejemplo 8 + 11 = 19 Entonces le sumas 21 y te resulta 40

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