a farmer cuts hazel twigs to make into bean poles to sell at the market ,he says that the sticks are each 240cm long but in the lengths of the sticks are normally distributed such that 55% of the sticks are longer than240cm and 10% are longer than 250cm.find the probability that a randomly selected stick is shorter than 235cm

Question

a farmer cuts hazel twigs to make into bean poles to sell at the market ,he says that the sticks are each 240cm long but in the lengths of the sticks are normally distributed such that  55% of the sticks are longer than240cm and 10% are longer than 250cm.find the probability that a randomly selected stick is shorter than 235cm