Teaching Jharkhand (JSSC) PRT (1 to 5) Mock Test 2023 Quantitative Aptitude Ratio and Proportion Mean Proportional
If the mean proportion between 162 and 128 is x and the third proportion to 32 and 72 is y, then x : y = ?
1
4 : 3
2
8 : 9
3
7 : 8
4
9 : 16