Quantitative Aptitude Prep Tips for MBA
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Two runners ride from A to B a distance of 55 km, and the first arrives 30 minutes before the second. They then ride from B to A, the first giving the second a start of 4 km and yet arrive 6 minutes before him. Find the speed of A.
Two runners ride from A to B a distance of 55 km, and the first arrives 30 minutes before the second. They then ride from B to A, the first giving the second a start of 4 km and yet arrive 6 minutes before him. Find the speed of A.
Let the speed of A be x km/hr and speed of B be y km/hr, then:
Also,
On solving both equation (1) & (2) we get x = 11 km/hr and y = 10 km/hr.
Upvote 
There is a right circular cone of base radius 5 cm. This cone is cut into two portions by a plane parallel to its base such that the portion above the plane is a cone of base radius 3 cm and the portion below the plane has a height of 6 cm. Find the volume of the bottom solid.
There is a right circular cone of base radius 5 cm. This cone is cut into two portions by a plane parallel to its base such that the portion above the plane is a cone of base radius 3 cm and the portion below the plane has a height of 6 cm. Find the volume of the bottom solid.
Volume of smaller cone
Volume of the solid = 125π – 27π = 98 π
Upvote A Banana seller sells x dozen Bananas. If he had sold 100 dozen Bananas more at 20 paise a dozen less or if he had sold 120 dozen less at 30 paise a dozen more, he would have received the same amount for his Bananas. How many dozens does he sell?
A Banana seller sells x dozen Bananas. If he had sold 100 dozen Bananas more at 20 paise a dozen less or if he had sold 120 dozen less at 30 paise a dozen more, he would have received the same amount for his Bananas. How many dozens does he sell?
Px= (P-0.2) (x+100)= (P+0.3) (x-120)
Solving x=1000
Upvote A shopkeeper buys 216 packets of biscuits at the rate of Rs. per pkt. He sells 8 dozen at the rate of Rs. 2.36 x per dozen and the rest at 16 paise each. What is the value of profit?
A shopkeeper buys 216 packets of biscuits at the rate of Rs. per pkt. He sells 8 dozen at the rate of Rs. 2.36 x per dozen and the rest at 16 paise each. What is the value of profit?
Total S.P. will be
Profit = 23.68x + 19.2 − 27x = 19.2 - 3.32x
Upvote 8 litres of wine are drawn from a cask and replaced by 8 litres of water. 8 litres of the mixture are next drawn and again replaced by 8 litres of water. If the ratio of wine to water in the cask is now 81 : 19, how much wine was in the cask at first? (There was no water in the cask at first.)
8 litres of wine are drawn from a cask and replaced by 8 litres of water. 8 litres of the mixture are next drawn and again replaced by 8 litres of water. If the ratio of wine to water in the cask is now 81 : 19, how much wine was in the cask at first? (There was no water in the cask at first.)
Let there be x litres of wine in the beginning
x = 80 litres
Upvote S1, S2 and S3 are three contestants for a race of 2,000 metres. If S1 can give S2 a start of 100 metres and S3 a start of 138 metrse, then of how many metres would S2 give a start to S3 in a similar race?
S1, S2 and S3 are three contestants for a race of 2,000 metres. If S1 can give S2 a start of 100 metres and S3 a start of 138 metrse, then of how many metres would S2 give a start to S3 in a similar race?
When S1 runs 1900 metres, S3 would run 1862 metres. Hence, the start given is 38/1900 * 2000 = 40 metres
Upvote If A : B = 5 : 6, B : C = 13 : 14, C : D = 9 : 4, find A : D.
If A : B = 5 : 6, B : C = 13 : 14, C : D = 9 : 4, find A : D.
Rahul normally take 30 minutes to cover a particular distance. Having increased his speed by a% today, Rahul was able to cover the same distance in 10 minutes. What is the value of a?
Rahul normally take 30 minutes to cover a particular distance. Having increased his speed by a% today, Rahul was able to cover the same distance in 10 minutes. What is the value of a?
The new time is of the old time. If time becomes , then new speed should have been of the initial speed. Therefore
Upvote In spite of a discount of 25%, I managed to make a profit of 20%. What is the percent mark-up?
In spite of a discount of 25%, I managed to make a profit of 20%. What is the percent mark-up?
Using the successive percentage change rule, we have
x =60%
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