# E-PolyLearning

 1. 3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day? a. 9 b. 10 c. 11 d. 12

 2. If the cost of x metres of wire is d rupees, then what is the cost of y metres of wire at the same rate? a. Rs. (xy/d) b. Rs. (xd) c. Rs. (yd) d. Rs. yd x