Question
Pipe 'A' takes 20 minutes to fill half of the tank. Pipe
'B' is twice as efficient as pipe 'A'. Find the percentage of the tank filled by both in 8 minutes.Solution
Time taken by pipe 'A' alone to fill the entire tank = 20 Ă 2 = 40 minutes Let efficiency of pipe 'A' = x units/minute Tank capacity = 40x units Pipe 'B' efficiency = 2x units/minute Work in 8 minutes = (x + 2x) Ă 8 = 24x units Percentage filled = (24x / 40x) Ă 100 = 60%
- In a certain code language, ' VALUE' is written as ' WZMFV' and 'FRAUD' is written as ' GSZFE'. How will 'SMILE' be written in that language?
What is the code for âoneâ?
If 4 < 5 > 8 = a then find the value of 25 $ a % 35
In a certain code language, 'TENSION' is written as '57' and 'RURAL' is written as '48'. How will 'POUND' be written in that language?
In a certain code language, 'MARGIN' is written as 'SBNOJH'. How will 'PRAYER' be written in that language?
If S = 19 and PARROT = 88, then DELIGHT =Â
In a certain code STABLE is written as 53@2%4 and PRODUCT is written as 6#9*&13. How is APPLE written in that code?
If the phrase âgroup medalâ is coded as âclm olmâ then what might be the code for the phrase âactually medalâ?
...If 20 + 8 * 5 = e, then find the value of e < 2 > 4.
If in a certain code, âHOTELâ is written as âGINPSUDFKMâ, How will BUTLER be written as in that language?
Relevant for Exams:
