self Maths Puzzle Numerical Ability Percentage

A man can row at 6 km/h in still water and at 4 km/h upstream. How long will the man take to go to a place
1 km downstream and return?
a) 36 min b) 24 min c) 12 min d) 18min

Read Solution (Total 1)

speed for downstream = 6+4=10 kmph
Time taken to go 1 km downstream = 1/10 hrs =6 mins

speed for upstream = 6-4=2 kmph
Time taken to go 1 km upstream = 1/2 hrs =30 mins

so total time = 6+30= 36 mins
12 years agoHelpfull: Yes(4) No(7)

self Other Question

A man can row at 6 km/h in still water and at 4 km/h upstream. How long will the man take to go to a place
1 km downstream and return?
a) 36 min b) 24 min c) 12 min d) 18min A hollow rectangular metal box of outer dimensions 30cmx24cmx18cm and of thickness 3cm is melted to
form a solid cube. What is the measure of side of the cube (in cm)?
a) 36 √36 b) 6 c) 18 3√36 d) 6 3√36