Start learning 50% faster. Sign in now
Let the speed of boat in still water =B
Let the speed of stream in still water =S
Speed of boat in downstream =B+S
Speed of boat in upstream =B-S
B+S=21/2=10.5km/h
B-S=15/2=7.5km/h
Solving after –
B=9km/h and S=1.5km/h
ATQ-
S =1.5 =3km/h
B=9=18 km/h
Now total taken time =
(21/B-S) +(15/B+S)
= (21/15) +(15/21)
=74/35
=2(4/35) hours
A lady who remains unmarried
Select the most appropriate ANTONYM of the bold word.
She has done a commendable job in making people aware of this issue.
I want a ___________ piece of bread.
In each of the following sentences, choose the word opposite in meaning to the bold word to fill in the blank.
The instructions were ambiguo...
Divulge
Select the appropriate option to replace the bold word with the adverb of frequency.
He did not admit that his team played badly.
Similarly, the images of discredited rulers were effased (A) in the monumental (B) narrative reliefs which played so prominent (C) a role in impe...