Mixed Quantitative Aptitude Questions Set 138

1. A costs four times as mush as B . A is sold at a loss of 35% and B is sold at a profit of 60%. If theselling price of A is Rs.1620 more than the selling price of B, what is the cost price of A?
   6150
   6600
   6161
   6480
   6250
   Option D
   SP of A = 0.65*400x = 260x SP of B = 1.6*100x = 160x Diiference = 260x – 160x = 1620 => x = 16.2 CP of A = 400x = 400*16.2 = Rs.6480
   
    



2. A solution of ‘Nimboopani’ has 35% sugar. Another solution has 15% sugar. How many litres of the second solution must be added to the 40 L of first solution to make a solution of 25% sugar?
   60
   40
   80
   50
   20
   Option B
   Sugar in first solution = 40*35/100 = 14L Sugar in second solution =15*x/100 = 3x/20L Total quantity = 40+x L Now , [14+3x/20]/(40+x) = ¼ =>x = 40 L
   
    



3. A and B enter into a partnership with their capital in the ratio of 16:9 resp. At the end of 6 months, B withdrew his capital. If they receive the profits in the ratio of 32:27 resp. For how many long is A ‘s capital used?
   5
   6
   3
   2
   4
   Option E
   A withdew capital after x months . (16*x)/(9*6) = 32/27 =>x = 4
   
    



4. A man can row 15 km/hr. in still water and he finds that it takes him twice as much time to row upstream as to row downstream . Find the speed of water.
   9
   5
   11
   10
   8
   Option B
   [Dist./(15+x)]*2 = [Dist/(15-x)] =>x = 5 km/hr.
   
    



5. 10 men and 15 children complete a certain piece of work in 25 days. If each child takes twice the time taken by a man to finish the work. In how many days will 35 children finish the same work.
   15
   18
   20
   25
   22
   Option D
   1 M = 2C Total work = (10M + 15C)*25 = 35C + 25 Time taken to complete the whole work = (35C + 25)/35C = 25 Days
   
    
Directions(6-10): What approximate value will come in place of question mark '?' in the following questions:


6. ? =25% of 3632 + 16% of 3750 – 11^3
   150
   152
   181
   165
   177
   Option E
   ? =25% of 3632 + 16% of 3750 – 11^3 =>? = 908 + 600 – 1331 => ? = 177
   
    



7. 10% of ? = 8^3 – 29^2 + 27^2 – 310 – 16*5
   100
   95
   115
   88
   120
   Option A
   10% of ? = 8^3 – 29^2 + 27^2 – 310 – 16*5 =>10% of ? =512 – 841 – 310 – 390 =>10% of ? = 10 => ? = 100
   
    



8. (1369)^1/2 * 10*4 + (2744)^3 *6*15 – (784)^1/2 *5 = ?
   2000
   2121
   2500
   2320
   2100
   Option D
   (1369)^1/2 * 10*4 + (2744)^3 *6*15 – (784)^1/2 *5 = ? =>? = 37*40 + 14*90 – 28*15 =>? = 1480 + 1260 -420 =>? = 2320
   
    



9. 32% of 25% of 4600 = 10% of 40% of ?
   8100
   9000
   9200
   8500
   7500
   Option C
   32% of 25% of 4600 = 10% of 40% of ? =>10% of 40% of ? = 368 =>? = 9200
   
    



10. 2304 / 16*(484)^1/2 – 13^3 = ?
    859
    800
    900
    920
    971
    Option E
    2304 / 16*(484)^1/2 – 13^3 = ? =>144*22 – 2197 = ? =>? = 971