1.A worker’s pay check P varies directly as the number of hours h worked. For working 20 hrs, the payment is ₱1,000. Find the payment for 60 hrs of work. 2.A crew of 12 men m can build a hut in 8 days. How long would it take a crew of 6 to build the same hut? 3.The area A of a triangle varies jointly as the base b and the altitude h of the triangle. If A = 65 square cm when b = 10 cm and h = 13 cm, find the area of a triangle whose base is 8 cm and whose altitude is 16 cm. 4.The acceleration a of an object in motion varies directly with the distance d it travels and inversely with the square of time t it travels. If an object that travels 5 m in 2 sec has an acceleration of 12.25 m/s square, what is the acceleration of an object that 12 m in 5 sec?