the population of mun is 3/4 the population of lake. if the sum of their populations is 1960, what is the population of each town
Population of lake = x
Population of mun = (3/4)x
=> x + (3/4)x = 1960
=> 4x + 3x = 7840 (multiplying by four)
=> 7x = 7840
=> x = 1120