In a sale, a mouse and an elephant together were sold for the price of £97. If the elephant cost £27 more than the mouse. How much did the mouse cost? Ans: Let cost of mouse be M pounds. Then cost of elephant = M + 27 Total cost = M + M + 27 = 97 i.e. 2M = 70 or M = 35 Cost of mouse = 35 pounds, and elephant is 62 pounds. Hope this helps :)