the difference between a number and its two fifth is 510 . what is 10 % of that number ?
"solution let the number be x . then , x - 2 / 5 x = 510 . ‹ = › 3 / 5 x = 510 ‹ = › x = [ 510 x 5 / 3 ] = 850 . therefore 10 % of 850 = 85 . answer c"
power(add(510, const_4), const_4)