ANSWERS TO NUMERICAL APTITUDE

BANKERS ACADEMY, PALAKKAD

1.  The average price of 12 different books is Rs 16 while the average price of 10 of these books is Rs 16.10. Of the remaining two books if the price of one is 50% more than the price of the other. What is the price of these two books?
(a) Rs 13, Rs 19.50(b) Rs 24, Rs 36.15(c) Rs 12.40, Rs 18.60(d) Rs 16.40, Rs 24.60(e)None of these
ANS : C

2. Two taps A and B can fill a tank in 12 minutes and 15 minutes respectively. If both the taps are opened simultaneously and the tap A is closed after 3 minutes, then how much more time will it take to fill the tank by tap B?
a. 7 min & 15 sec    b. 7 min & 45 sec    c. 8 min & 5 sec    d. 8 min & 15 sec

ANS: D

3. A car covers a distance of 715 km at a constant speed. If the speed of the car would have been 10 km/hr more, then it would have taken 2 hours less to cover the same distance. What is the original speed of the car?
a. 45 km/hr    b. 50 km/hr    c. 55 km/hr    d. 65 km/hr
ANS : C

4. The marked price of a table is Rs. 3000 and is available at successive discounts of 20% and 10% respectively. If there is an additional discount of 5% on cash payment, then what is the cash price of the table?
a. Rs. 2400    b. Rs. 2160    c. Rs. 2100    d. Rs. 2052

ANS : D

5.  A certain sum becomes Rs. 5290 in 2 years and Rs. 6083.50 in 3 years at C.I. The rate of interest per annum is
a. 10%    b. 12%    c. 15%   d. 16⅔ %

ANS : C

6.  A person sold 320 mangoes for the C.P. of 400 mangoes. His gain percent is
a. 10%    b. 15%    c. 12½%    d. 25%
ANS : D

7. A sum of Rs. 800 amounts to Rs. 920 in three years at S.I. If the rate of interest is increased by 5% then the amount will increase to
a. Rs. 950    b. Rs. 980    c. Rs. 1010    d. Rs. 1040

ANS : D

8. A person covered some distance in 12 hours. He covered half the distance by rail @ 75 km per hour and the rest by car @ 45 km/hr. The total distance covered by him was
a. 450 km   b. 675 km   c. 337.5 km   d. 1350 km
ANS :  B

9. A man walking at the rate of 6km per hour crosses a square field diagonally in 9 seconds. The area of the field is-
a. 125 sq. cm   b. 112.5 sq. cm   c. 110 sq. cm   d. 100√2 sq. m

ANS : B

10.  Price of food grains have risen by 10% and of other items of consumption by 15%. If the ratio of an employee's expenditure on food grains and other items is 2:5, by how much should his salary be increased so that he may maintain the same level of consumption as before, assuming that his present salary is Rs. 3500?
a. Rs. 300   b. Rs. 350   c. Rs. 375   d. Rs. 475
ANS :  D

11.A house owner wants to get his house painted. He is told that this would require 25 kg of paint. Allowing for 15% wastage and assuming that the paint is available in 2kg tins, the number of tins required for painting the house is -
a. 15  b. 12   c. 10   d. 20

ANS : A

12. If the numerator of a fraction is increased by 400% and the denominator is increased by 500%, the resultant fraction is 10/21 . What was the original fraction ?
(A) 5/12 (B) 8/13(C) 17/14 (D) 4/7(E) None of these

ANS : D