Question
Sandeep can solve 20 questions in 1 hour. If he
decreased his efficiency by 20%, then how much time would he take to solve the same number of questions?Solution
1 hour = 60 minutes Initial efficiency of Sandeep = 60 Ă· 20 = 3 minutes/question New efficiency of Sandeep = 60 Ă· (20 x 0.8) = 3.75 minutes/question So, time required to finish 20 questions = 3.75 x 20 = 75 minutes Alternate Solution Ratio of new efficiency to old efficiency = 0.8:1 = 4:5 Therefore, ratio of time taken now to ratio of time taken initially = 5:4 Required time taken = 60 x (5/4) = 75 minutes
In a certain code, ‘LEMON’ is coded as ‘IAIII’ and ‘CLERK’ is coded as ‘AIAOI’, then what will PRIME be ...
I n a coded language âCountry Cities States Townsâ is written as âfv, sd, qa, rtâ and âCountry District States Capitalâ is written as âgh,...
WOSUPA
In a certain code language, 'YEAR' is coded as âZFBS' and ' LOOP' is coded as ' MPPQ'. How will 'MEDIA' be coded in that language?
What does the code â%G18 %B19 #O16â stand for?    Â
If âShame lame tame pave fame isâ is written as 439516; âShame tame lame fame lifeâ is 04396 and âPave is pureâ is 857, which digit represen...
In the following question, find which one word cannot be made from the letters of the given word âCONSTITUTIONALâ
If all the vowels in the word âGRATEFULâ are changed to the next letter in the English alphabetical order and all the consonants remain the same the...
- In a certain code language, "WINDOW" is written as "DLWMRD", and "GARDEN" is written as "MVWIZT". How will "SUMMER" be written in that language?
In a certain code language, "some bats are" is written as "dev naw nbd", " bats are balls" is written as "dev uaz nbd" and "balls bats over" is written ...
Relevant for Exams:
