Question

The product of Riya age 3 years ago and 5 years later is 240. find the present age ​

Answer 1

Answer:

Step-by-step explanation

take present age as x years

3 years ago=x-3

5 years ago=x-5

so...(x-3)×(x-5)=240

we multiply alternative values

=(x×x) (-3×-5)

x×x=x² while -3×-5=15

=x²+15=240

=x²=240-15

=x²=225

=√x²=√225

x=5 hence Riyas

present age is 5

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