Two men Y and Z started a job in which Y was thrice as good as Z and therefore took 60 days less than B to finish the job. How many days will they take to finish the job, if they start working together?
Question
Aptitude:
Two men Y and Z started a job in which Y was thrice as good as Z and therefore took 60 days less than B to finish the job. How many days will they take to finish the job, if they start working together?
Let us take,
Time taken by Y = w days
Time taken by Z = 3w days
3w – w =60 => w = 30 days.
Time taken by B is 90 days.
(Y + Z)’s 1 day work = 1/30 + 1/90= (3+1)/90= 2/45
The work will be completed in 22 1/2 days.
Aptitude:
48 x 16 -36 x 84 / 112 = ?
Aptitude:
136 x 85 x 18 – 26895 = ?
Aptitude:
The Fourth root of 24010000 is ____
Aptitude:
The sum of seven consecutive numbers is 168. What is the sum of the first and the last number?
Aptitude:
Rashmi’s weight is 25% that of Mekala’s and 40% that of Tanu’s. What percentage of Tanu’s weight is equal to Mekala’s weight?
Aptitude:
By selling 60 articles a vendor gains the selling price of 15 articles. Find his gain percentage?
Aptitude:
If a train runs at 40 km/hr. It reaches its destination late by 11 minutes. But if it runs at 50km/hr, it is late by 5 minutes. Find the correct time for the train to complete its journey.
Aptitude:
The number nearest to 75070 which is divisible by 65, is _____
Aptitude:
The ratio of milk and water is 55kg of a mixture is 7:4. The quantity of water that must be added to make the ratio 7:6 is ______
Aptitude:
A motor car goes to a place at a speed of 20km/hr and returns from there at a speed of 30 km/hr. The average speed of the car in the entire journey is ___