Simplify:
2 answers:
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Let
x-------> the number of fiction books
y-------> the number of nonfiction books.
we know that
-----> equation
-----> equation
Add equation and equation
<u>find the value of y</u>
therefore
<u>the answer is</u>
Part a) the number of fiction books is
Part b) the number of nonfiction books is
take father's age as x
if it is doubled i.e 2x .we get the answer as 20 less than 100 which means 100-20=80
accordingly the equation will be 2x=80
x=40
given that ,
son is 1/4 th of his father
hence ,
son = 1/4×(x)
I.e, 1/4×40 =10
Hope it helps
