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__QUANT PRACTICE SET 7 FOR RRB PO & CLERK PRELIM 2020__

**RRB Clerk and RRB PO Prelims exam are going to be held in the upcoming months. We have already provided you with the PDFs of many topics of Quantitative Aptitude like Simplification/Approximation, Number Series,datainterpretation.important Arithmetic questions to prepare for RRB Clerk and PO Pre exam. Practicing these questions will help you to know about the level of the questions. To increase your speed and accuracy, enhance your calculations.**

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** **__START QUIZ__

__START QUIZ__

Directions (01 – 05): Find out the wrong number in the following number series.

1) 19, 235, 260, 324, 335, 341

a) 341

b) 235

c) 260

d) 335

e) 324

2) 69, 86, 65, 88, 61, 90, 56

a) 86

b) 61

c) 56

d) 88

e) 90

3) 13, 94, 45, 70, 60, 62

a) 94

b) 60

c) 70

d) 62

e) 45

4) 23, 46, 92, 161, 252, 268

a) 46

b) 161

c) 252

d) 92

e) 268

5) 27, 54, 162, 448, 3240, 19440

a) 54

b) 3240

c) 162

d) 448

e) 19440

Directions (Q. 6 – 10): Study the following information carefully and answer the given questions:

The following table shows the total population in 5 different states, the ratio of male and female among them and the percentage of population below poverty line.

6) Find the difference between the total male population in state P and R together to that of total female population in state Q and T together?

a) 15 lakhs

b) 22 lakhs

c) 6 lakhs

d) 10 lakhs

e) None of these

7) Find the ratio between the above poverty line population in state R to that of the below poverty line population in state S?

a) 108: 85

b) 75: 62

c) 52: 43

d) 11: 5

e) None of these

8) Find the total number of female population in state P, R and S together

a) 72 lakhs

b) 90 lakhs

c) 56 lakhs

d) 64 lakhs

e) None of these

9) The above poverty line population in state P and Q together is approximately what percentage of total population in state S?

a) 132 %

b) 153 %

c) 120 %

d) 105 %

e) 94 %

10) The below poverty line population in state R and T together is what percentage more/less than the total male population in state Q and S together?

a) 36 % more

b) 15 % less

c) 36 % less

d) 4 % more

e) 15 % more

**SOLUTIONS**

1) Answer: d)

19 + 63 = 235

235 + 52 = 260

260 + 43 = 324

324 + 32 = 333

333 + 23 = 341

The wrong number is 335.

2) Answer: c)

69 86 65 88 61 90 57

17 -21 23 -27 29 -33

4 2 4 2 4

Or,

The wrong term is 56.

3) Answer: b)

13 + 92 = 94

94 – 72 = 45

45 + 52 = 70

70 – 32 = 61

61 + 12 = 62

The wrong term is 60

4) Answer: c)

23 + 23 * 1 = 46

46 + 23 * 2 = 92

92 + 23 * 3 = 161

161 + 23 * 4 = 253

253 + (23 * 5) = 368

The wrong term is 252.

5) Answer: d)

27 * 1 = 27

27 * 2 = 54

54 * 3 = 162

162 * 4 = 648

648 * 5 = 3240

3240 * 6 = 19440

The wrong term is 448

Direction (6-10) :

6) Answer: c)

The total male population in state P and R together

= > 60*(7/12) + 36*(3/4)

= > 35 + 27 = 62 lakhs

The total female population in state Q and T together

= > 45*(4/9) + 72*(1/2)

= > 20 + 36 = 56 lakhs

Required difference = 62 – 56 = 6 lakhs

7) Answer: a)

The above poverty line population in state R

= > 36*(60/100)

The below poverty line population in state S

= > 50*(34/100)

Required ratio = [36*(60/100)]: [50*(34/100)]

= > 108: 85

8) Answer: d)

The total number of female population in state P, R and S together

= > 60*(5/12) + 36*(1/4) + 50*(3/5)

= > 25 + 9 + 30 = 64 lakhs

9) Answer: b)

The above poverty line population in state P and Q together

= > 60*(75/100) + 45*(70/100)

= > 45 + 31.5 = 76.5 lakhs

Total population in state S = 50 lakhs

Required % = (76.5/50)*100 = 153 %

10) Answer: c)

The below poverty line population in state R and T together

= > 36*(40/100) + 72*(20/100)

= > 14.4 + 14.4 = 28.8 lakhs

The total male population in state Q and S together

= > 45*(5/9) + 50*(2/5)

= > 25 + 20 = 45 lakhs

Required % = [(45 – 28.8)/45]*100 = 36 % less