Twice a fraction plus half that fraction, all times that fraction, equals the fraction. What is the fraction?
Guess (or figure out) the unknown number. Fifty percent more than this number is 25% less than 60% more than 10.
Louie won’t tell you his age, but it happens that if you square his age this year, and you square his age next year, the difference between those two perfect squares is 75. So how old is he?
Find 4 consecutive integers whose sum is 17798.
Find four consecutive integers whose sum is 17802.
Find all sets of consecutive positive integers whose sum is 100. How many such sets are there?