1. Fredrick after spending 20% of his salary in buying electronic goods and 10% of the monthly salary in repair work of furniture, invested 30% of the remaining amount in fixed deposits. If he was left with Rs 18,963, how much is his monthly salary?
(1) Rs. 38,700
(2) Rs. 35,650
(3) Rs. 40,200
(4) Rs. 37,950
(5) Rs 42,500
2. The total price of 6 trousers and 5 shirts is Rs 2,340. The total price of 7 shirts is Rs 540 more than the total price of 3 trousers. What is the total price of 4 shirts?
(1) Rs 780
(2) Rs 680
(3) Rs 760
(4) Rs 640
(5) Rs 720
3. In a village, 30% of the villagers belong to upper economic class. The number of villagers who belong to middle class are 3/2 of the number villagers who belong to lower economic class. If 6860 villagers belong to lower economic class, what is the population of the village?
(1) 22600
(2) 24500
(3) 26000
(4) 25500
(5) 24300
4. A water tank has one inlet, A and one outlet, B. A takes 5 hours to fill the empty tank, when B is not open and B takes 8 hours to empty the full tank. If the tank is three fifth full, how much time will it take to fill the tank completely when both A and B are opened simultaneously? (in hours)
(1) 6 1/3
(2) 4 1/3
(3) 8 1/3
(4) 5 1/3
(5) 7 1/3
5. The height and base of a triangle are equal to the length and breadth of a rectangle respectively. If the perimeter of the rectangle is 86 meter and the difference between its length and breadth is 5 meter, what is the area of the triangle?
(1) 224
(2) 228
(3) 216
(4) 242
(5) 256
Directions(6 - 10): Find out the wrong number in the series.
6. 40960, 10240, 2560, 640, 200, 40, 10
(1) 640
(2) 40
(3) 200
(4) 2560
(5) 10240
7. 1, 3, 10, 21, 64, 129, 356, 777.
(1) 10
(2) 21
(3) 64
(4) 129
(5) 356
8. 196, 169, 144, 121, 100, 80, 64
(1) 169
(2) 144
(3) 121
(4) 100
(5) 80
9. 6, 12, 48, 100, 384, 768, 3072
(1) 768
(2) 384
(3) 100
(4) 48
(5) 12
10. 22, 33, 66, 99, 121, 279, 594.
(1) 33
(2) 121
(3) 279
(4) 594
(5) 99
Answers
(1) Option 1.
Let Fredrick’s monthly salary be Y
% salary left after spending on electronic goods and repair work of furniture = 100 – (20+10) = 70
Money left after investment in fixed deposits = Y x 70/100 x 70/100 = Rs 18, 963
Hence Y = Rs 38,700
(2).Option 5.
Let the price of a trouser be T and a shirt be S.
6T + 5S = Rs 2,340…. (1)
7S - 3T = Rs 540…….(2)
Solving (1) and (2), we get S = 180
Hence the price of 4 shirts = 4 x 180 = Rs. 720.
(3).Option 2.
Let the population of the village be P.
Midde economic class population = 3/2 x lower economic class population = 3/2 x 6860 =10290
10290 + 6860 = 70 % of P
17150 = 70 % of P
Hence P = 24500
(4).Option 4.
Work done by A and B in an hour = 3/40
Work to be done = 2/5
Let the time required to fill 2/5 th of the tank be x.
1 : x : : 3/40 : 2/5
Hence X = 5 1/3
(5).Option 2.
Perimeter of the rectangle = 86 m.
Let the rectangle’s length and breadth be L and B respectively.
L – B = 5 m
L = 5 + B
2( L + B) = 86
2( B + 5 + B) = 86
B = 19m, L =24
Area of a triangle = ½ x base x height = ½ x 24 x 19 = 228
(6).Option 3.
Go on dividing by 4 to get the next number. So, 200 is wrong.
(7).Option 5.
A x 2 +1, B X 3+1, C X 2+1, D X 3+1 and so on. So, 356 is wrong.
(8).Option 5
All the rest are perfect squares except 80.
(9).Option 3
Each even term of the series is obtained by multiplying the previous term by 2.
2nd term = (1st term x 2) = 6 x 2 =12; 4th term = (3rd term x 2) = 48 x 2 =96; 6th term = (5th term x 2) = 384 x 2 = 768.
Hence 4th term should be 96 instead of 100.
(10).Option 3
All the rest except 279 are multiples of 11.
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