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1. |
City A has a population of 136000 which is decreasing at the rate of 2400 per year , City B has a population of 84000 which is increasing at the rate of 1600 per year . In how many years will the population of two cities become equal ? |
A. | 15 |
B. | 18 |
C. | 13 |
D. | 19 |
Answer» D. 19 | |