December 29th, 2019 by Ravi Handa

Quantitative Aptitude - Arithmetic - TSD - A man leaves his home
Quantitative Aptitude - Arithmetic - Time, Speed and Distance
Question
A man leaves his home and walks at a speed of 12 km per hour, reaching the railway station 10 minutes after the train had departed. If instead he had walked at a speed of 15 km per hour, he would have reached the station 10 minutes before the train's departure. The distance (in km) from his home to the railway station is
Answer
20
Solution
As per the question from CAT 2017 - Quantitative Aptitude

Read More...

Posted in Uncategorized

December 29th, 2019 by Ravi Handa

Quantitative Aptitude - Arithmetic - Time and Work - A person can complete
Quantitative Aptitude - Arithmetic - Time and Work
Question
A person can complete a job in 120 days. He works alone on Day 1.
On Day 2, he is joined by another person who also can complete the job in exactly 120 days.
On Day 3, they are joined by another person of equal efficiency.
Like this, everyday a new person with the same efficiency joins the work. How many days are required to complete the job?
Answer
15
Solution
As per the question from CAT 2017 -

Read More...

Posted in Uncategorized

December 23rd, 2019 by Ravi Handa

Quantitative Aptitude – Arithmetic - Pipes and Cisterns – A tank is emptied every day
Slot -2 – Quantitative Aptitude – Arithmetic - Pipes and Cisterns – A tank is emptied every day at a fixed time
A tank is emptied every day at a fixed time point. Immediately thereafter, either pump A or pump B or both start working until the tank is full. On Monday, A alone completed ﬁlling the tank at 8 pm. On Tuesday, B alone completed filling the tank at 6 pm. On Wednesday, A alone worked till 5 pm, and then B worked alone from 5 pm to 7 p

Read More...

Posted in Uncategorized

December 23rd, 2019 by Ravi Handa

Quantitative Aptitude – Arithmetic - Time Speed and Distance – Points A and B are 150 km apart
Slot -2 – Quantitative Aptitude – Arithmetic - Time Speed and Distance – Points A and B are 150 km apart
Points A and B are 150 km apart. Cars 1 and 2 travel from A to B, but car 2 starts from A when car 1 is already 20 km away from A. Each car travels at a speed of 100 kmph for the ﬁrst 50 km, at 50 kmph for the next 50 km, and at 25 kmph for the last 50 km. The distance, in km, between car 2 and B when car 1 reaches B is (TITA )?

Read More...

Posted in Uncategorized

December 23rd, 2019 by Ravi Handa

Quantitative Aptitude – Arithmetic - Mixtures – A jar contains a mixture of 175 ml
Slot -2 – Quantitative Aptitude – Arithmetic - Mixtures – A jar contains a mixture of 175 ml
A jar contains a mixture of 175 ml water and 700 ml alcohol. Gopal takes out 10% of the mixture and substitutes it by water of the same amount. The process is repeated once again. The percentage of water in the mixture is now?
a) 20.5
b) 30.3
c) 25.4
d) 35.2
Answer: d) 35.2
Solution:
initial volume of Alcohol = 700, total volume

Read More...

Posted in Uncategorized

December 23rd, 2019 by Ravi Handa

Quantitative Aptitude – Arithmetic - Time Speed and Distance – On a long stretch of east-west
Slot -2 – Quantitative Aptitude – Arithmetic - Time Speed and Distance – On a long stretch of east-west road
On a long stretch of east-west road, A and B are two points such that B is 350 km west of A. One car starts from A and another from B at the same time. If they move towards each other, then they meet after 1 hour. If they both move towards east, then they meet in 7 hrs. The diﬀerence between their speeds, in km per hour, is?

Read More...

Posted in Uncategorized

December 23rd, 2019 by Ravi Handa

Quantitative Aptitude – Arithmetic - Time and Work – Ramesh and Ganesh can together complete
Slot -2 – Quantitative Aptitude – Arithmetic - Time and Work – Ramesh and Ganesh can together complete
Ramesh and Ganesh can together complete a work in 16 days. After seven days of working together, Ramesh got sick and his eﬃciency fell by 30%. As a result, they completed the work in 17 days instead of 16 days. If Ganesh had worked alone after Ramesh got sick, in how many days would he have completed the remaining work?
a) 14.5

Read More...

Posted in Uncategorized

December 23rd, 2019 by Ravi Handa

Quantitative Aptitude – Arithmetic - Mixtures – There are two drums, each containing a mixture
Slot -2 – Quantitative Aptitude – Arithmetic - Mixtures – There are two drums, each containing a mixture
There are two drums, each containing a mixture of paints A and B. In drum 1, A and B are in the ratio 18 : 7. The mixtures from drums 1 and 2 are mixed in the ratio 3 : 4 and in this final mixture, A and B are in the ratio 13 : 7. In drum 2, then A and B were in the ratio?
a) 251 : 163
b) 239 : 161
c) 229 : 141
d) 220 :

Read More...

Posted in Uncategorized

December 22nd, 2019 by Ravi Handa

Quantitative Aptitude – Arithmetic - Mixtures – A 20% ethanol solution is mixed
Slot -2 – Quantitative Aptitude – Arithmetic - Mixtures – A 20% ethanol solution is mixed
A 20% ethanol solution is mixed with another ethanol solution, say, S of unknown concentration in the proportion 1:3 by volume. This mixture is then mixed with an equal volume of 20% ethanol solution. If the resultant mixture is a 31.25% ethanol solution, then the unknown concentration of S is?
a) 55%
b) 52%
c) 48%
d) 50%
Answer: d) 50 %
Solu

Read More...

Posted in Uncategorized

December 22nd, 2019 by Ravi Handa

Quantitative Aptitude – Arithmetic - Mixtures – The strength of a salt solution is p%
Slot -2 – Quantitative Aptitude – Arithmetic - Mixtures – The strength of a salt solution is p%
The strength of a salt solution is p% if 100 ml of the solution contains p grams of salt. If three salt solutions A, B, C are mixed in the proportion 1 : 2 : 3, then the resulting solution has strength 20%. If instead the proportion is 3 : 2 : 1, then the resulting solution has strength 30%. A fourth solution, D, is produced by mixing B and C in the r

Read More...

Posted in Uncategorized