Question 337849
length of finger nail in  m month =10+3m
length of finger nail in 8 months =10+3*8
                                  =10+24 =34mm

length of finger nail in 3 years 

3 years =3*12months
       =36 months
length of finger nail in 36 month =10+3*36
                                 =10+108 = 118mm