Concepts of Proportions and Unitary method

Concepts of Proportions and Unitary method

Questions

#### If the cost of 7 apples is Rs. 14, what is the cost of 21 apples? 1. [ ] Rs. 21 2. [ ] Rs. 30 3. [x] Rs. 42 4. [ ] Rs. 60 #### If a 15-ounce bottle of shampoo costs Rs. 50, how much does a 30-ounce bottle cost? 1. [ ] Rs. 50 2. [x] Rs. 100 3. [ ] Rs. 300 4. [ ] Rs. 200 #### If 1/3 cup of milk makes 1 pancake, how much milk is needed to make 5 pancakes? 1. [ ] 1 cup 2. [x] 5/3 cups 3. [ ] 2 cups 4. [ ] 5 cups #### The mean proportion of 169 and 144 is: 1. [x] 156 2. [ ] 147 3. [ ] 126 4. [ ] 165 #### If the cost of 7 bats is Rs. 14, what is the cost of 21 bats? 1. [ ] Rs. 21 2. [ ] Rs. 30 3. [x] Rs. 42 4. [ ] Rs. 60