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Three sisters together spent an average of $78 each on Christmas presents. If the older two spent an average of $95 each, how much did the youngest spend? Find one single letter which can be put in front of: a) a LISTENER to spell a word meaning ANXIETY; b) a STATUS to make OPEN; c) a MEADOW to make an INSECT Each symbol represents a different digit from 1 to 9. The sum of the digits in each row and column is shown. Can you work out which digit each symbol stands for? When you have replaced each symbol in the square, find the sum of the numbers along the diagonal line that starts in the top left-hand corner.