Answer :

viny
For S.I. Use this formula :- p*t*r/100
For C.I. Use = p(1+ r/100) -1
Please note there are no short cuts for success specially for maths,i know you want tricks so that you can get good marks as well top in competitative exam but frnd pratiice eacy day there promblem and then you can solve them easliy with ease.. thanks you

there is only one method for solving problems is learning formulaes

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