To make 1 litre of fruit punch, Mrs Subra mixed 300 ml of concentrate with water.<hr>15 litres of fruit punch will have <input min="0" type="number" id ="imp5pg119q3_1" class="lineinput" placeholder="?" /> $$l$$ <input min="0" type="number" id ="imp5pg119q3_2" class="lineinput" placeholder="?" /> ml of water.