Wipro Company Numerical Ability Percentage

The population of town A increased from 325,000 in 1960 to 350,000 in 1970, and it is projected that the population will increase by the same number from 1990 to 2000. Approximately what is the projected percent increase in population from 1970 to 1980 ?
A. 7.1%
B. 7.7%
C. 8.3%
D. 14.3%
E. 15.3%

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Wipro Other Question

On a certain day, 18 percent of the male employees on a police force were on duty. If 180 employees were on duty that day and half of these were male employees, how many male employees were on the police force?
A. 90
B. 180
C. 270
D. 500
E. 1,000 A library contains science books , out of which 50 are on botany, 65 are on zoology, 90 are on physics. 50 are on geology, and 110 are on chemistry. If science books are removed randomly from the library, how many must be removed to ensure that 80 of the books removed are on the same science?
A. 81
B. 159
C. 166
D. 285
E. 324