3 A gardener used \( 151 \ell \) of water to water Garden \( A \). He used 29 less water for Garden B tha Garden \( A \). He used \( 15 \ell \) more water for Garden C th Garden B. (a) How many litres of water did he us Garden B? (b) How many litres of water did he us Garden C?

Let's break down the problem step by step. 1. **Water used for Garden A**: \( 151 \, \text{litres} \) 2. **Water used for Garden B**: The gardener used 29 litres less water for Garden B than for Garden A. \[ \text{Water for Garden B} = \text{Water for Garden A} - 29 \] \[ \text{Water for Garden B} = 151 - 29 = 122 \, \text{litres} \] 3. **Water used for Garden C**: The gardener used 15 litres more water for Garden C than for Garden B. \[ \text{Water for Garden C} = \text{Water for Garden B} + 15 \] \[ \text{Water for Garden C} = 122 + 15 = 137 \, \text{litres} \] Now, we can summarize the answers: (a) The gardener used **122 litres** of water for Garden B. (b) The gardener used **137 litres** of water for Garden C.