The Ghanta Ghar clock strikes the number of the hour at each full hour and strikes once at every half-hour. How many strikes are heard after the time shown, up to and including 6 p.m.?

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24. The clock shows 1:45 p.m. Strikes follow at 2:00 (2), 2:30 (1), 3:00 (3), 3:30 (1), 4:00 (4), 4:30 (1), 5:00 (5), 5:30 (1) and 6:00 (6): 2+3+4+5+6+4=24. (20 leaves out the half-hours.)

The Ghanta Ghar clock strikes the number of the hour at each full hour and strikes once at every half-hour. How many strikes are heard after the time shown, up to and including 6 p.m.?

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