 
 <prompt> Annie collect one pack of crayons. The pack get 21 crayons inside. She get one box wey get 36 crayons for her locker. Her friend Bobby give her half of wetin she get for her locker. She come decide to give her sister Mary 1/3 of her total amount of crayons. How many crayons she go give Mary? <response>: Annie start with 21 + 36 = 57 crayons.
Bobby come give am 36 / 2 = 18 crayons.
Annie come get total of 57 + 18 = 75 crayons.
She come give Mary total of 75 * (1 / 3) = <<75*(1/3)=25>>25 crayons.

The answer go be 25. 