Question
The speed of current is 4 km/h. What will be the
respective downstream speed and upstream speed of a boy rowing a boat, if half of the distance covered going downstream in a certain time is equal to the distance covered going upstream in the same time?Solution
Let the speed of boy in still water be X km/h. And the speed of current = 4 km/h Downstream speed = (X + 4) km/h Upstream speed = (X – 4) km/h Let time be ‘t’ hours. ⇒ [(X + 4) t]/2 = (X – 4) t ⇒ X + 4 = 2X – 8 ⇒ X = 12 km/h Downstream speed = 12 + 4 = 16 km/h Upstream speed = 12 – 4 = 8 km/h
Throughout the text, Graubard's lapidary prose is lucid and provocative, likely to _________ a glow of pleasure in the reader.
Each question below has two blanks, which is indicating that something has been omitted. Choose the most suitable option indicating the words that can ...
(A) The committee's ___________ on the matter will be final and binding.
(B) The court's ____________ was in favor of the defendant, leading to a...
Select the most appropriate option to fill in the blank.
A ______ mind rarely meets a dead end; it continues the search for the answers.
Each question below has two blanks, which is indicating that something has been omitted. Choose the most suitable option indicating the words that can ...
If the hurricane comes near the city, the winds may _______ the flood walls and cause them to crumble.
The Reserve Bank of India has ………… Master directions on the issuance and operation of prepaid payment instruments (PPI) in t...
Her biography ________ that she was not as rich as everyone thought.
I didn’t realize how hurtful my words had been until I saw Sherrie’s expression, _________ with shock.
The professor's lecture was so _______ that even students who were usually uninterested found themselves engaged.
Relevant for Exams:
