1. The sum of two consecutive odd no. is greater than 28. Find the least value of the larger odd no.
2. Mr Chan is driving at x km/h. If his speed increases by 15 km/h, the distance travelled in 2 hours will be greater than that of travelling in 3 hours at his original speed. Find the range of the value of y.
更新1:
2. * Find the range of value of x.