Abdul’s class has a set of 30 lockers arranged in 3 rows of 10 and numbered from 1 to 30 starting from the top left hand corner and counting across each row from left to right until reaching the bottom right hand corner.

Abdul has locker No 7.

Betty’s locker is below Abdul’s and two to the left

Cheung has a locker with a number 6 more than Betty’s locker

Dilip has a locker two rows above Cheung’s

Evita’s locker is five to the right and one below Dilip’s

Which two students have lockers next to each other ?