(Questions 10-14): Study the following pie-chart and the table given below it carefully to answer the questions given below: Percentage-wise distribution of lecturers in 6 different subjects in a university total number of lecturers: 1600 (FIGURE) Ratio of male to female lecturers Lecturers                                         Males : Females Mathematics                                                3 : 4 Education                                                5 : 3 Hindi                                                1 : 3 Chemistry                                                1 : 7 Physics                                                9 : 5 Zoology                                                7 : 9 Total number of lecturers (both male and female) in Hindi is approximately what per cent of the total number of female lecturers in Mathematics and Chemistry together? (a) 58       (b) 43      (c) 47       (d) 51      (e) 50