engineering recuitment DRDO CEPTAM STA B Tier I (Sr. Technical Assistant) Mock Test 2022 Quantitative Aptitude Speed Time and Distance Boat and River
A boat goes a distance of 3 km upstream and \(4\frac{1}{2}\) km downstream in 45 minutes, while it goes 3.6 km upstream and 2.4 km downstream in 39 minutes. The speed (in km/h) of the boat when going downstream is:
1
12
2
9
3
16
4
10