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Q 2234301252.     The ratio of the present ages of Director and Department head is 11:15 in the first year of a college. Before course starting i.e. the first year of previous batch, the respective ratio of their ages was 9 : 13. What will be the respective ratio of their ages after another batch if college runs the program of 4 year course?
IBPS-CLERK 2017 Mock Prelims
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