1. (a) The entries in a Savings Bank Pass Book are as given below: Date Particulars Withdrawals Rs. P. Deposits Rs. P. Balance Rs. P. 01.01.03 B/F -- -- 14000.00 01.02.03 By cash -- 11500.00 25500.00 12.02.03 To cheque 5000.00 -- 20500.00 05.04.03 By cash -- 3750.00 24250.00 15.04.03 To cheque 4250.00 -- 20000.00 09.05.03 By cash -- 1500.00 21500.00 04.06.03 By cash -- 1500.00 23000.00 Calculate the interest for six months (January to June) at 4% per annum on the minimum balance on or after the tenth day of each month.   Hint First letter clue   2. (b) P and Q are centres of circles of radius 9 cm and 2 cm respectively. PQ = 17 cm. R is the centre of a circle of radius x cms, which touches the above circles externally. Given that ∠PRQ = 90°, write an equation in x and solve it.   First letter clue