The average age of a family of 5 was 32 It fell to 18 when the grandmother died How old

avg means 32,32,32,32,32
but after grandma died its 18
so 18,18,18,18
so grandma age 32+14+14+14+14=88.
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We have to find the total age i.e
x/5 = 32 =>x=160
Now we have to reduce grand mother age (160-y)
now the new average is (160-y)/4 = 18 By solving this we will get grand mother's age is 88 yrs
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Total sum is5*32 is 160
Neglect gm then sum is 18*4 is 72
Hence gm age is 160-72
Ans is 88
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5 member of a family....means total age =5*32=160
now one died 4 left...then the total age will be 4*18(average)=72
so the age of grandmother will be=160-72=88
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x/5=32 hence x=160;
now (160-y)/4=18 hence y=88;
hence 88 is the age of granee
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88yrs
32*5-4*18=88
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average age of 5 members=32
when grand mother died age becomes=18
her age will be
32-18=14
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p+q+r+s+t=32*5=160
q+r+s+t=18*4=72
:.age of p=160-72=88(ans)
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avg age of 5 persons is 5*32=160
grand mother dead so 4 members left and there avg age is 18 so 4*18=72
finally 160-72=88
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x/5=32
x-y/4=18
x=160
y=88
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The average age of a family of 5 was 32 . It fell to 18 when the grandmother died.How old was she ?