Question

c) Thandi is 6 years older than Mfundo. In 3 years' time, Thandi will be twice as old as Mfundo. How old is Thandi now? ​

Answer 1

Resposta:

Thandi's age = 15 years

Mfundo's age = 9 years

Explicação passo a passo:

Thandi's age = t

Mfundo's age = m

t = m + 6

t + 3 = 2(m+3)

t + 3 = 2m + 6

t + 3 = 2m

m + 6 + 3 = 2m

9 = 2m - m

9 = m

Mifundo's age = 9

Thandi's age = 9 + 6 = 15