other govt exam India Post Postman & Mail Guard Mock Test 2020 Quantitative Aptitude Ratio and Proportion Compound Ratios
The ratio of Sand to gravel in a mixture is 15 : 8 while that between gravel and cement is 6 : 17. What is the ratio of sand to cement in the mixture?
1
25 : 58
2
45 : 68
3
46 : 60
4
70 : 85