# SBI Clerk Pre Quantitative Aptitude (Day-34)

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Application Sums

1) A Shopkeeper makes 30% profit when he gives 12% discount while selling an article. At the end of the day he gives a customer 6% additional discount so that the remaining articles are sold. What will be his new approximate profit percentage?

a) 21%

b) 25%

c) 23%

d) 18%

e) 15%

2) A box contains six pink balls and four orange balls and three balls drawn one after other. Find the probability of all three balls being Pink balls if the balls drawn are not replaced?

a) 1/4

b) 1/5

c) 1/6

d) 1/2

e) None of these

3) Sonu and Manu started a business together, Sonu invested 20% more than Manu and Tanu joined the business with capital of 15% more than Sonu. They decided to give donation of 5% profit to a trust. If after one year Sonu received Rs.5700 in profit, then find the profit earned by Tanu?

a) Rs.6780

b) Rs.5875

c) Rs.6555

d) Rs.5565

e) None of these

4) If pipes A and B can fill the tank in 7 minutes and 10 minutes respectively. Both are kept open for 2 minutes and then B is closed. Pipe A fills the rest of the tank in x minutes. For how long was Pipe A kept open in all?

a) 4.8 minutes

b) 5.6 minutes

c) 6.4 minutes

d) 6.8 minutes

e) None of these

5) A and B together can do a piece of work in 30 days and B and C can do the same work in 40 days. C alone can do the same work in 60 days. A and C start the work together and do the work for 10 days after that B joined them. In how many days the work will be completed?

a) 21(2/3)

b) 20(2/3)

c) 18(2/3)

d) 22(2/3)

e) None of these

Simplification

Direction (6 – 10): What should come in place of the question mark (?) in the following questions?

6) 23 Ã— 15 â€“ 60 + (? Ã· 31) = 292

a) 220

b) 217

c) 218

d) 186

e) 229

7) 15% of 600 + 22 % of 650 + 147 = ?

a) 380

b) 390

c) 360

d) 320

e) 350

8) 3(3/4) + 4(2/5) – 3(1/8) + 6(2/5) = ?

a) 11 (17/40)

b) 9 (17/40)

c) 10 (17/40)

d) 13 (17/40)

e) None of these

9) âˆš841 Ã— 3 + 120% of 450 – 180% of 780 + 60% of 1800 = ?

a) 303

b) 310

c) 308

d) 290

e) None of these

10) 25% of 780 + âˆš3249Ã— 12 + 865=?

a) 1844

b) 1644

c) 1744

d) 1455

e) None of these

Directions (1-5):

Let Marked price = 100

SP=100*88/100=88

CP=88*100/130=880/13

Then gives addition discount 6%=12+6=18%

SP=100*82/100=82

Profit=82-880/13=186/13

Profit percentage = ((186/13)*100) / (880/13) = 21%

Probability of first ball Pink=6C1/10C1=6/10=3/5

Probability of second ball Pink=5C1/9C1=5/9

Probability of third ball Pink=4C1/8C1=4/8=1/2

Required probability=3/5*5/9*1/2

=3/18=1/6

Let Manu investment=100x

Sonu=100x*120/100=120x

Tanu=120x*115/100=138x

Profit ratio=120x: 100x: 138x

=60:50:69

Profit earned by Tanu = 5700* (69/60)

= Rs.6555

For 2 minutes A and B=2/7+2/10

= (10+7)/35

=17/35

Remaining =18/35

A fill the remaining tank=18/35*7=18/5=3.6 minutes

Total time by Pipe A=2+3.6=5.6 minutes

A+B=1/30

B+C=1/40

C=1/60

B=1/40-1/60=1/120

A=1/30-1/120=3/120=1/40

A+C work for 10 days= (1/60+1/40)*10]

= 1/6 + 1/4

= (2+3)/12

=5/12

Remaining work=7/12

A+B+C=1/40+1/120+1/60= (3+1+2)/120=1/20

Remaining work=20*7/12=35/3=11(2/3)

Total days=10+11(2/3) =21(2/3)

Directions (6-10):

23 Ã— 15 â€“ 60 + (? Ã· 31) = 292

285 + (? Ã· 31) = 292

? = 217

15% of 600 + 22 % of 650 + 147 = ?

(15/100) * 600 + (22/100) * 650 + 147 = ?

90 + 143 + 147 = ?

380 = ?

3(3/4) + 4(2/5) – 3(1/8) + 6(2/5) = ?

(3+4-3+6) (3/4+2/5-1/8+2/5)=?

10(57/40) = ?

11(17/40) = ?

âˆš841*3+120% of 450-180% of 780+60% of 1800=?

29*3 +120/100 * 450 â€“ 180/100 * 780 + 60/100 * 1800 =?

87+540-1404+1080=?

303=?