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Mathematics 8 Online
OpenStudy (anonymous):

plse answer this

OpenStudy (zzr0ck3r):

so confused by this....how many sons are there?

OpenStudy (zzr0ck3r):

can you retype the question, or is English second language?

OpenStudy (zzr0ck3r):

18 yearsa go the motherwas twice the age of her son, 32 yearsago age of apersonwas equal to sum of ages of his wife and son. if the person is 6 years morein age that of his wife. find their present ages. m-18=2s p-32=w+s_2 p=w+6 this is three equations with 5 variables....

OpenStudy (zzr0ck3r):

how is the first mother/son related to the person-wife-son? is it the same son? is the wife the mother????

hartnn (hartnn):

actually 18 yearsa go the motherwas twice the age of her son, is implied as 18 yearsa go the motherwas twice the age of her son (18 yrs ago) so, (m-18) = 2 (s-18) same for other equation...

OpenStudy (zzr0ck3r):

but the other question has wife son person...is it the same son, and thus mother is wife?

hartnn (hartnn):

i think mother = person's wife, and both son are same...so, 3 equations 3 unknown

OpenStudy (zzr0ck3r):

m-18=2(s-18) p-32=w+s-64 p=w+6 @hartnn ?

OpenStudy (zzr0ck3r):

err but m=w

hartnn (hartnn):

the question is actually ambiguous... it should mention, 18 yearsa go the motherwas twice the "present" age of her son, then m-18 =2s

hartnn (hartnn):

yes, otherwise this is correct m-18=2(s-18) p-32=m+s-64 p=m+6

OpenStudy (zzr0ck3r):

yeah, I think maybe he/she was translating it...

hartnn (hartnn):

then p=64, m=58,s=38

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