TCS Company Numerical Ability Algebra

Given, a(i) = a(i-1)+a(i-2) where i>=3
Now if a10=322 then what is the value of a5?
hints:- a10=a9+a8, a9=a8+a7 and so on

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TCS Other Question

tcs question a certain price is dr p upto 30 kg and another adiitional charge after 30 kg if the price for 33 kg is 1147 and for 36 kg is 1246 what is price for first 10kg ? If f(9-n^2) = an+2 and f(4+n^2)=3-b then what is the value of f(13)?
[n^m means n to the power m]