Question
Two boats X and Y start towards each other from two
places, 140 km apart. Speed of the boat X and Y in still water are 13km/hr and 15km/hr respectively. If X proceeds down and Y up the stream, they will meet after.Solution
Let the speed of the stream be x km/hr and both the boats meet after t hours According to the question, ⇒ (13 + x) t + (15 – x) t = 140 ⇒ 13t + 15t = 140 ⇒ 28t = 140 ⇒ t = 140/28 = 5 hours
What will come in place of ‘a’?
What is the code for the word “Tempered” ?
What is the code of “ start space ”?
In a certain code language, 'HOUSE' is written as '81261922' and 'INK' is written as '181411'. How will 'MISTAKE' be written in that language?
- In a certain code language '69483' is written as ‘36756’. What will be the code for '82374' in that language?
If 4 < 5 > 8 = a then find the value of 25 $ a % 35
In a certain code language, ‘GARDENS’ is coded as ‘3 6 7 9 16 20 21’. How will ‘TEACHER’ be coded in that language?
In a certain code language, '210' means 'why normal reaction; '631' means 'reaction values equator' and '043' means 'why poles values'. Which of the fo...
If CHARGING is related to DI1SH3OH in the same way as DIFFERENT is related to….?….
The code ‘ q&Q v$S s#X’ stands for
Relevant for Exams:
