Rachel , smith , john and Thomas brought in 300 pennies for the penny harvest . Smith brought in 2/6 of the pennies . Rachel brought 1/5 and Thomas brought 1/4 of the pennies. How many pennies did john bring in?

2/6 = 1/3

1/3 * 300 = 100
1/5 * 300 = 60
1/4 * 300 = 75
sum = 235
300 - 235 = 65