state gov Chandigarh Police Constable Mock Test 2023 Quantitative Aptitude Mensuration Plane Figures
The ratio between length and breadth of a room is 3 : 2. The cost of coloring all four walls at 50 paise per sq. m. is Rs 450. If the length of the room is 15 m, find the height of the room?
1
15
2
18
3
20
4
21