Question
A boat moves 25km upstream and 39km downstream in 8
hours. It travels 35km upstream and 52km downstream in 11 hours. What is the speed of the stream if it travels at a uniform speed?Solution
Let the speed of boat in still water =B and speed of stream =S then – ATQ- 
Solving (4)-(3) B-S=5km/h B+S=13km/h  Speed of Stream (S)=13-5/2=4km/h
"The scientist’s groundbreaking research on renewable energy sources was hailed as a major _______ in the field of environmental science."
Bhanu made a working model of an airplane ______ when he was sixteen.
The enactment of the Act was a legislative …... However, its implementation has been …………..
Sentences are given below with a blank. Fill in these blanks with the appropriate option.
The old bookshop was filled with the __________ scent...
The team decided to _______ after realizing their initial approach wasn’t working as planned.
Over time humanity has .............. ever greater ............. in controlling and commanding combustion – harnessing fire.Â
- Which of the following can fill both the blanks A and B, to make the statement grammatically and contextually correct? The word must fit in both sentences....
Choose the correct alternative out of the four choices given below each sentence.
I correspond _____ her regularly
Choose the correct structure to complete the sentence.
Sanjay has been posted in Hyderabad, _________ birthplace.
Select the most appropriate option to fill in the blank.
Our school had decided to take us to the Himalayas for excursion. I ________ to convin...
