Quantitative Aptitude Prep Tips for MBA
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The compound interest earned on sum in the 6th year and 7th year are Rs. 1250 and Rs. 1450 repectively. What is the rate of interest per annum (compounded annually)?
The compound interest earned on sum in the 6th year and 7th year are Rs. 1250 and Rs. 1450 repectively. What is the rate of interest per annum (compounded annually)?
CI7 – CI6 = 1450 – 1250
= Rs. 200
Rate of interest = (200/1250*100)
=16% per annum
Upvote 
The compounds interest earned in the 5th year is Rs. 900. If the rate of interest in 25% and interest is compounded annually, then what will be the compound interest (in Rs.) earned in the 6th year?
The compounds interest earned in the 5th year is Rs. 900. If the rate of interest in 25% and interest is compounded annually, then what will be the compound interest (in Rs.) earned in the 6th year?
CI 6th year = CI 5th year * 1.25
= 900*1.25
= Rs. 1125
Upvote Two trains of length 640 metres and 480 metres are moving with the speed of 234 km/hr and 144 km/hr respectively. If both train are moving in the same distance, then in how much time will the faster train can cross the slower train?
Two trains of length 640 metres and 480 metres are moving with the speed of 234 km/hr and 144 km/hr respectively. If both train are moving in the same distance, then in how much time will the faster train can cross the slower train?
Difference between the speed = 90 km/hr
= 90*5/18 = 25 m/s
Time taken = (640 + 480)/25
= 44.8 seconds
Upvote A train is moving at the speed of 72 km/hr can cross a platform in 73 seconds. If the length of this train is 420, metres then what will be the length of platform?
A train is moving at the speed of 72 km/hr can cross a platform in 73 seconds. If the length of this train is 420, metres then what will be the length of platform?
Sum of length = (72*5/18)*73
=1460 m
Length of platform = 1460 – 422
= 1040 m
Upvote A train can cross a pole in 8 seconds. If the speed of train is 108 km/hr, then what will be the length of this train?
A train can cross a pole in 8 seconds. If the speed of train is 108 km/hr, then what will be the length of this train?
A and B are 120 km start from each other. A and B start moving at the same time with the speed of 36 km/hr and 24 km/hr in the same distance. If A is following B, then in how much time A will catch B?
A and B are 120 km start from each other. A and B start moving at the same time with the speed of 36 km/hr and 24 km/hr in the same distance. If A is following B, then in how much time A will catch B?
Speed of A with respect to B
AB = 36 – 24 = 12 km/hr
Time taken by A to catch B
AB = 120/12 = 10 hours
Upvote If 20 Pumps can raise 1500 tons of water in 18 days working 10 hour per day, then 45 pumps will raise how many tons of water in 16 days working 4 hours per day?
If 20 Pumps can raise 1500 tons of water in 18 days working 10 hour per day, then 45 pumps will raise how many tons of water in 16 days working 4 hours per day?
(20*18*10)/1500 = (45*16*4)/Q
Q = 1200 tons
Upvote Raj and Mohan together can complete work in 20 days. Mohan and Sohan together can complete the same work in 12 days. Raj and Sohan together can complete the same work in 15 days. In how many days Raj alone can complete the work?
Raj and Mohan together can complete work in 20 days. Mohan and Sohan together can complete the same work in 12 days. Raj and Sohan together can complete the same work in 15 days. In how many days Raj alone can complete the work?
Let total work is 60 (LCM of 20, 12 & 15)
Per day work
(Raj + Mohan) = 3 units
(Mohan + Sohan) = 5 units
(Raj + Shohan) = 4 units
(Raj + Mohan + Sohan) = (3 + 5 + 4)/2 = 6 units
Raj's per day work = 6 – 5 = 1 unit
Total time taken by Raj = 60 days
Upvote Mahesh and Anand together can polish the floors of a building in 60 days. Mahesh alone can complete (1\4) part of the total work in 45 days. In how many days Anand alone can polish the floor of the same building?
Mahesh and Anand together can polish the floors of a building in 60 days. Mahesh alone can complete (1\4) part of the total work in 45 days. In how many days Anand alone can polish the floor of the same building?
Total days taken by Mahesh alone = 45*4 = 180 days
Let the total work = 180 units (LCM of 180 and 60)
Mahesh per day work = 1 units
Mahesh and Anand per day work = 180/60 = 3 units
Anand per day work = 3 – 1 = 2
Time taken = 180/2 = 90 days
Upvote In a group of 80 persons, there are food provision for 150 days. If 70 more persons join the group, then how long will these provision last?
In a group of 80 persons, there are food provision for 150 days. If 70 more persons join the group, then how long will these provision last?
Food for 80 person = 150 days
Food for 1 person = 150 * 80
Food for 150 person = (150 * 80/150)
= 80 days
Upvote