other govt exam India Post Postman & Mail Guard Mock Test 2020 Quantitative Aptitude Ratio and Proportion Simple Ratios
In a school ratio of boys to girls was 2 ∶ 7 in the year 2019. In the year 2020, 25 boys and 100 girls left the school. The new ratio of boys to girls in school becomes 3 ∶ 10. Find the number of girls in the class in 2020.
1
250
2
200
3
150
4
100