Dear Friends, SBI Clerk 2018 Notification has been released we hope you all have started your preparation. Here we have started New Series of Practice Materials specially for SBI Clerk 2018. Aspirants those who are preparing for the exams can use this “20-20” Quantitative Aptitude Questions.
| Topic | Daily Publishing Time |
| Daily News Papers & Editorials | 8.00 AM |
| Current Affairs Quiz | 9.00 AM |
| Logical Reasoning | 10.00 AM |
| Quantitative Aptitude “20-20” | 11.00 AM |
| Vocabulary (Based on The Hindu) | 12.00 PM |
| Static GK Quiz | 1.00 PM |
| English Language “20-20” | 2.00 PM |
| Banking Awareness Quiz | 3.00 PM |
| Reasoning Puzzles & Seating | 4.00 PM |
| Daily Current Affairs Updates | 5.00 PM |
| Data Interpretation / Application Sums (Topic Wise) | 6.00 PM |
| Reasoning Ability “20-20” | 7.00 PM |
| English Language (New Pattern Questions) | 8.00 PM |
| General / Financial Awareness Quiz | 9.00 PM |
[WpProQuiz 1246]
Click “Start Quiz” to attend these Questions and view Explanation
Direction: (Q1 – Q5) Study the following information carefully and answer the questions given below:
The following table represents time taken (in hours) by different pipes to fill a cistern. Some values are missing.
Q1. If A and C kept open for 4 hours then A is replaced by D and kept open for 5 more hours, the tank is filled. In how many hours pipe C alone can fill the cistern?
Q2. Two pipes D and E are opened simultaneously to fill the cistern. After how much time should D is closed so that E alone can fill the cistern in another 20 hours?
Q3. If C takes half of the time taken by F to fill the cistern and F takes half of the time taken by B to fill the cistern and all of them working together can fill the cistern in 48 hours, What is the time taken by F to fill the cistern?
Q4. Two pipes A and D can fill the cistern. If they are opened on alternate hours and if pipe A is opened first, in how many hours will the cistern be full?
Q5. If B can fill the tank in 12 hours and pipe A works with one third of its efficiency, In how much time both the pipes can fill the cistern?
6) Two pipes M and N can fill a cistern in 24 min and 32 min respectively. If both pipes are opened together, then after how many minutes N should be closed so that the tank is full in 18 minutes?
7) A shop keeper sold a TV set for Rs. 17940 with a discount of 8% and gained 19.6%. If no discount is allowed, then what will be his gain percentage?
8) Since price of the Banana goes down by 20% a man can now buy 2 bananas more in 40 Rs. What was the original price of one banana?
9) A man driving his bike at 24kmph reaches his office 5 minutes late. Had he driven 25% faster on an average he would have reached 4 minutes earlier than the scheduled time. How far is his office?
10) 40% of the employees in a factory are workers. All the remaining employees are executives. The annual income of each worker is 390rs. The annual income of each executive is Rs. 420. What is the average annual income of all the employees in the factory together?
Directions (Q. 11-15): what should come in place of question mark in the following number series?
11). 12, 19, 35, 59, 90, ?
12). 4, 10, 27, 112, 555, ?
13). 16, 25, 40, 62, 92, ?
14). 19, 23, 14, 30, 5, ?
15). 15, 22, 36, 64, ?, 232
Directions (Q. 16-20): What approximate value should come in place of question mark in the following questions? (you are not expected to calculate the exact value)
16). [ (√530 × 36.003) ÷ 47.987] × ? = 5863.10376
17). (77.987 % of 358) + (68.55% of 729) = ?
18). √624.995 + (4.9989)2 = ? ÷ (1 / 4.9900865)
19). 989.001 + 1.00982 × 76.792 = ?
20). 63.9872 × 9449.8780 ÷ 243.003 = (?)2
Answers:
Direction: (Q1 – Q5)
Q1. Answer: b
let C takes X hours to fill the cistern.
According to the question:
4/24 + 4/x + 5/x + 5/30 = 1
=> 1/6 + 9/x + 1/6 = 1
=> 2/6 + 9/x = 1
=> 1/3 + 9/x = 1
=> 9/x = 1-1/3
=> 9/x = 2/3
=> x = 27/2 hours
Hence, C can alone fill the cistern in 27/2 hours.
Q2. Answer: d
let D should be closed after x hours.
x/30 + x/45 + 20/45 = 1
=> (3x+2x)/90 = 1-20/45
=> 5x/90 = (45-20)/45
=> x/18 = 25/45
=> x = 10 hours.
Hence, D should be closed after 10 hours.
Q3. Answer: d
let time taken by B to fill the cistern = 4x hours
hence, time taken by F to fill the cistern = 2x hours
and time taken by C to fill the cistern = x hours
according to the question:
48/x + 48/2x + 48/4x = 1
=> (192 + 96 + 48)/4x = 1
=> 4x = 336
=> x = 336/4
=> x = 84 hours.
Hence, time taken by F to fill the cistern = 2 x 84 = 168 hours.
Q4. Answer: b
Part of the tank filled in 2 hours = 1/24 + 1/30 = 3/40
=>part of the tank filled in 2 x 13 hours = 3 x 13/40 = 39/40
Remaining part = 1 – 39/40 = 1/40
Since A is opened first, time taken by A to fill 3/120 part:
X/24 = 1/40
=> x = 3/5
Hence total time = 2 x 13 + 3/5 = 26(3/5) hours.
Q5. Answer: a
let both the pipes can fill the cistern in x hours.
According to the question:
x/12 + x/(24* 3) = 1
=> x/12 + x/72= 1
=> (6x + x)/72 = 1
=> 7x/72 = 1
=> x = 72/7 hours.
6) Answer: (c)
Consider M & N pipes opened together for x min
M——24min total work
N——-32min 96 units
Efficiency of M is 4
Efficiency of N is 3
7x+4(18-x) = 96
X = 8 minutes
7) Answer: (b)
SP=17940
d%=8%
Therefore Marked Price (MP)=17940 x 100/92=19500
P% = 19.6%
CP=17940 x 100/119.6 = 15000
If no discount allowed on MP then SP=19500
P% = 4500 x 100/15000 = 30%
8) Answer: (a)
2 Bananas 40 Rs
1 banana 20 Rs
(80/100)X = 20
X= 25
Original price for 1 banana = Rs. 25
9) Answer: (c)
Let x km be the distance
Time1 = x/24 hrs
While travelling at 25% faster speed
24 + 25% 24 = 30 kmph
Time2= x/30 hrs
Total time difference 9 minutes
x/24 –x/30= 9
x = 18km
10) Answer: (c)
Let total No. of employees be 100
(40 x 390 + 60 x 420)/100 = 408 Rs
Directions (Q. 11-15):
11). Answer d
Difference of Difference +9, +8, +7….
12). Answer c
X2+2, x3-3, x4-4…
Answer= 3336
13). Answer b
Difference of difference is 6, 7, 8, 9,..
14). Answer a
Diff +22 , -32, +42 ….
15). Answer e
Difference +7, +14, +28, +56…
Directions (Q. 16-20):
16). Answer C)
[( √530 x 36.003) ÷ 47.987] x ? = 5863.10376? = 5863 / [( √529 x 36) ÷ 48] = 5863 / [(23 × 36) ÷ 48] = 340
17). Answer A)
? = (77.987% of 358) + (68.55% of 729)
? = [(78/100) × 358] + [(69/100) × 725]
= 280 + 500 = 780
18). Answer D)
√624.995 + (4.9989)2
= ? ÷ (1 / 4.9900865)
or, √625 + (5)2= ? ÷ (1/5)
? = 1/5 (25 + 25) = 10
19). Answer B)
? = 989.001 + 1.00982 × 76.792
= 990 + 1 x 76.8 = 1066= 1066
20). Answer e)
(?)2= 63.9872 x 9449.8780 ÷ 243.0034
= 64 x 9450 ÷ 243 = 64 x 39 = 2496
Now, (?)2 = 2496
? = 50
This post was last modified on September 17, 2020 9:46 am