A completes 80% of a work in 20 days. Then B joins A and they complete the remaining work in 3 days. How long will B alone take to complete the whole work?
37\( \frac{1}{2} \) days
40 days
39 days
35\( \frac{1}{2} \) days
The maximum length of a rod (in m) that can be kept in a cuboidal room of length 10 m, breadth 6 m and height 8 m, is:
The ratio of cheese to sauce for a single pizza is 1 cup to \( \frac{1}{2} \) cup. If Rama used 15 cups of sauce to make a certain number of pizzas, then how many cups of cheese did she use on those pizzas?