Teaching DSSSB PRT Special Educator Mock Test Quantitative Aptitude Ratio and Proportion Mean Proportional
If x is the mean proportional between 39 and 156 and y is the third proportional to 24 and 36, then for 6x ∶ 13y = ?
1
3 ∶ 2
2
4 ∶ 9
3
2 ∶ 3
4
3 ∶ 4