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A man can row upstream at 7 kmph and downstream at 10 kmph. Find man’s rate in still water
and the rate of current?
a) 6.5, 1.2 km/hr b) 8.5, 1.5 km/hr c) 1.5, 1.6 km/hr
d) 7.5, 1.8 km/hr e) None of these
Read Solution (Total 3)
-
- let still water = x and current = y
so x+y=10 and x-y=7 hence, 2x=17 or x=17/2=8.5 so ans b is true - 8 years agoHelpfull: Yes(0) No(0)
- the formulae we having for sill water = 1/2*(u+d) =1/2(17) = 8.5
the formulae we having for rate of current = 1/2(u-d) =1/2(3) = 1.5 - 8 years agoHelpfull: Yes(0) No(0)
- b)8.5,1.5km/hr.
still water=1/2(7+10)=8.5
current=1/2(7-10)=1.5 - 8 years agoHelpfull: Yes(0) No(0)
Bank Exam Other Question
If 10, 12 and ‘x’ are sides of an acute angled triangle, how many integer values of ‘x’ are
possible?
a) 7 b) 12 c) 9
d) 13 e) 11
Eight friends B,C,D,E,G,H,N and O are sitting in a row facing north.All of them work in different banks viz ICICI,HDFC,IDBI,SBI,BOI,OBC,Citibank, and Dena bank,but not necessarily in the same order.
H sits fourth to the left of the person who works in IDBI.N sits between O and C but doesn't work in IDBI. B, who works in HDFC,sits second to the left of C,who works in OBC.B doesn't sit on the extreme end of the row. The person who works in BOI sits on the immediate left of the one who works in SBI.E works in Citibank and is not an immedite neighbour of B. The person who works in Dena bank is not an immediate neighbour of the one who works in OBC.D doesn't work in Dena bank. G sits on one end of the row