Question
Study the pattern.
135, X , Y , 210, 235

Find the values of
  1. X
  2. Y
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Study the pattern.
135, X , Y , 210, 235

Find the values of
  1. X
  2. Y