Question

mr tan spent 3/5 of his salary what percentage of his salary didi he spend

Answer 1

Mr tan spent 3/5 of his salary what percentage of his salary didi he spend

so 

let salary be s

now

he spent 3/5 *s

not percentage

=> 3/5 * 100 * s

=> 60% of his salary

:)

Answer 2

Mr tan spent 60 percent