Question 97186
Let n be the required number. From the problem description, you can write:
{{{(n/5)+(n/15)+(n/50) = 43}}} Add the fractions, the LCD is 150.
{{{(30n+10n+3n)/150 = 43}}} Simplify.
{{{43n/150 = 43}}} Multiply both sides by 150.
{{{43n = 43(150)}}} Divide both sides by 43.
{{{n = 150}}}