(c) The perimeter of a rectangular piece of a land is 140m. The size of the land is decreased due to the expansion of the road and the new length and breadth of the land are equal to 17/20 and 13/15 times of the original length and breadth respectively. the new perimeter of the land is 120m, find the original length and breadth of the land.

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?