Mixed Quantitative Aptitude Questions Set 158

1. If Pipes A and B can fill a tank in 15 min and 20 mins respectively and pipe C empties the tank in 12 mins. what will be the time taken by A, B and C together to fill the tank completely?
   50 minutes
   40 minutes
   20 minutes
   30 minutes
   10 minutes
   Option D
   LCM = 60 = (+4+3-5) = 2
   Tank filled in 1 min = 2 units
   Total time = 60/2 = 30 minutes
   
   
    



2. If ratio of ages of P and Q before 4 year ago is 5 : 4 and after 12 years sum of their ages will be 68 years, their what was P’s age 2 years ago ?
   29 years
   26 years
   24 years
   22 years
   21 years
   Option D
   Age increased in 16 year = 32 years
   Sum of Age of P and Q before 4 years = 36
   5x + 4x = 36
   X = 4
   P’s age 2 years ago = 5x + 2 = 22 years
   
   
    



3. If A invested Rs. 12000 at some rate of interest of S.I and B joined him after 3 months investing 16000 at same rate of interest if A leaves before 2 month of completion, then what will be the share of B’s profit after 1 year if total profit is Rs. 22000?
   Rs.17000
   Rs.12000
   Rs.10000
   Rs.19000
   Rs.16000
   Option B
   Ratio= 5:6
   B’s share = 22000 × 6/11 = Rs.12000
   
   
    



4. If a boat travels 18 km more in downstream than in upstream in 3 hr. and if the speed of the Boat in still water is 20 km/hr. find the distance travelled by boat in downstream in 4 hr. ?
   92 km
   98 km
   96 km
   88 km
   90 km
   Option A
   (Ds –Du ) 3 = 18 km
   Different in 1 hr. = 6km
   Ds and Du
   Speed of boat in still water = 20 km/hr.
   Ds = 23 km/hr.
   Du = 17 km/hr. Distance travelled = 4 × 23 = 92 km
   
   
    



5. When a person sold an article, his profit percent is 60% of the selling price. If the cost price is increased by 75% and the selling price remains the same, then find decrement in the profit is what percent of the selling price of the article?
   50%
   40%
   30%
   10%
   20%
   Option C
   Let the selling price be 250x
   Then, profit = 150x
   CP=250x − 150x = 100x
   Now, new C.P. = 100x × 175/100 = 175x
   New S.P. = 250x
   New profit = 250x – 175x = 75x
   Required % = (150x−75x)/250x × 100 = 30%
   
   
    
Directions(6-10): Find the missing term '?' of the following questions.


6. 130, 154, 186 , ? , 274, 330
   200
   215
   230
   226
   210
   Option D
   +24,+32,+40,+48,+56
   ? = 226
   
   
    



7. 5 , 15, 50, ?, 1030, 6185
   220
   213
   205
   216
   210
   Option C
   5 × 2 + 5 = 15
   15 × 3 + 5 = 50
   50 × 4 + 5 = 205
   205 × 5 + 5 = 1030
   1030 × 6 + 5 = 6185
   
   
    



8. 12, 6.5, 7.5, 12.75, 27.5, ?
   66.50
   55.55
   70.15
   68.20
   71.25
   Option E
   12 × 0.5 + 0.5 = 6.5
   6.5 × 1 + 1 = 7.5
   7.5 × 1.5 + 1.5 = 12.75
   12.75 × 2 + 2 = 27.5
   27.5 × 2.5 + 2.5 = 71.25
   
   
    



9. 18, ?, 9, 18, 72, 576
   8
   7
   9
   6
   4
   Option C
   18 × 0.5 = 9
   9 × 1 = 9
   9 × 2 = 18
   18 × 4 = 72
   72 × 8 = 576
   ? = 9
   
   
    



10. 1864, 1521, 1305, ? , 1116, 1089
    1010
    1550
    1225
    1110
    1180
    Option E
    -7^3,-6^3,-5^3,-4^3,-3^3
    ? = 1180