Question
Two numbers are in the ratio 3 : 2. If 8 and 6 are
subtracted from the first and the second number respectively, the ratio becomes 8 : 5. The numbers are:Solution
Ratio of two numbers =3:2 Let the first number =3x and second =2x ATQ- (3x-8)/(2x-6) =8:5 15x-40=16x-48 16x-15x =48-40 X =8. First number =3x =3Γ8=24 Second number =2x =2Γ8=16.
- Vikas does 65% of a job in 39 days, while Suman does 40% in 40 days. Vikas worked for 18 days and left. Calculate how many days Suman would need to wrap up...
Komal and Seema individually can complete a task in β5aβ hours and β7aβ hours respectively. If they together can complete (4/5)th of the work in...
'A' and 'B' alone can complete a work in 9 days and 18 days, respectively. Find the time taken by them to complete the work if they work on alternate da...
Efficiency of A is 25% more than B and B takes 30 days to complete a piece of work. A started the work alone and then B joined him 4 days before actual ...
A group of workers was put on a job. From the second day onwards, 1 worker left work everyday. If no worker was left when 52% of the work gets complete...
Ajay, Bablu and Chirag can complete a certain work in 21, 28 and 15 days respectively. Ajay and Chirag started the work while Bablu joined them after 5 ...
A can complete a job in 20 hours. B alone can complete the same job in 15 hrs. A work for 9 hrs and then the remaining job is completed by B. How many h...
Ananya and Riya can complete a task in 20 hours and 40 hours respectively. Ananya works alone for 10 hours and then Riya finishes the remaining task. Ho...
- Alex and Ben can complete a job individually in 14 days and 21 days, respectively. If they take turns to work one day each, beginning with Alex, how long w...
- Pipes X and Y can fill a tank in 45 minutes and 60 minutes respectively. Another pipe Z can empty the tank in 1 hour 30 minutes. If X and Z are opened firs...