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Let the initial salary be y. now if we increase y by 25%, the value will become 32000. It's equation is given as, y+25%xy=32000 (we can also write 25% as 25/100) so y+(25/100)y=32000 taking L.C.M. of y+(25/100)y we get, (125/100)y=3200 now we take (125/100) to the other side of equation, it becomes its reciprocal as, y=3200x(100/125) y=25600 So his original salary was Rs.25600.

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

On increasing the salary 25% means125% of the salary is Rs.32000.
let the original salary be x.
hence125x/100=32000
i. e. x=32000×100/125
x=25600
Hence the original salary is Rs.25600.