Jenny gave 1/6 of her salary to her mother and saved 2/5 of her remaining salary. what fraction of her total salary was saved

Answer 1

2/5 of what was left after giving 1/6 to her mother means
2/5 of (1-1/6) of her salary.

Working it out:
2/5 × (6/6-1/6)
=2/5 × (5/6)
=2/6
=1/3

Answer 2

Jenny gets a salary increment of 20%. She gives 1 5 of her new salary to her mother and spends another 40%. If she has RM600 left,what is her original salary?