*Hello and welcome to*

**exampundit**. So here is a set of SBI PO Prelims Quantitative Aptitude Quiz 2017.

1. √86.49+√(5+?^2)=27.3

1) 18

2) 22

3) 48

4) 20

5) 3√/5√28

2. Which of the following is almost same as 67.985×857.9×0.00063?

1) 6.7985×85.79×0.063

2) 67985×8579×63

3) 67.985×85.79×63

4) 3√/5√28

5) None

3.587.4+58.74×3-5.874/?=702.744

1) 2.136

2) 5.136

3) 8.325

4) 9.5

5) None of

the above

the above

4.9.4-[8.6-{6.4-(5.4-

__4.2-2__)}]=?
1) 4

2) 8

3) 2

4) 0

5) 3√/5√28

5.42.33-3×42.32×15.3+3×42.3×15.32-15.32=?

1) 25699

2) 19683

3) 96873

4) 32593

5) None of

the above

the above

6. 2.273+3×1.232×2.27+3×2.272×1.23+1.233

1) 43

2) 63

3) 83

4) 23

5) None of

the above

the above

7. Which of the following is almost same as (6.4372×224.36)/(84.379×96.44)

1) (64372×22436)/(84379×9644)

2) (64372×22436)/(84.379×96.44)

3) (6.4372×224.36)/(84.379×96.44)

4) (8.4372×224.36)/(84.379×96.44)

5) none

8. √[(11.9×13.3×18.9)/(0.17×19×2.1)]=?

1) 63

2) 21

3) 17

4) 25

5) None of

the above

the above

9. √[(9.500×0.085×18.9)/(0.0017×0.19×2.1)]

1) 250

2) 350

3) 100

4) 150

5) None of

the above

the above

10. √[2000+√612+√196] =?

1) 45

2) 85

3) 25

4) 35

5) None of

the above

the above

**Solutions**– Tap to show

**1. Ans-1**

=9.3+√(7+?^2)=27.3

=>?^2=324-7

=>?=√317=17.88=18

**2. Ans-1**

The number of

decimals should be same for being equivalent. Here the number of decimal places

is 9. Option 1 has 9 decimal places . hence answer is 1

decimals should be same for being equivalent. Here the number of decimal places

is 9. Option 1 has 9 decimal places . hence answer is 1

**3. Answer-1**

=>5.874/?=587.4+117.48-702.744=2.136

**4. Ans-1**

=9.4-[8.6-{6.4-(3.2)}]=9.4-5.4=4

**5. Ans-2**

It is in the form of

(a-b)3=(42.3-15.3)3=273=19683

(a-b)3=(42.3-15.3)3=273=19683

**6. Ans-1**

It is in the form of

(a+b)3

(a+b)3

=(2.27+1.23)3=3.53=42.875≈43

**7. Answer-3**

For being equivalent

, the difference of the sum of number of decimal places in numerator and

denominator should be same

, the difference of the sum of number of decimal places in numerator and

denominator should be same

Here the decimal

places in numerator=6 and in denominator is 5, difference is 1 . and in option

3 also the difference is 1. Hence they are equal.

places in numerator=6 and in denominator is 5, difference is 1 . and in option

3 also the difference is 1. Hence they are equal.

**8. Ans-2**

When the sum of

decimal places in numerator is equal to that in denominator under the radical

sign, the decimals get removed

decimal places in numerator is equal to that in denominator under the radical

sign, the decimals get removed

√[(11.9×13.3×18.9)/(0.17×19×2.1)]=

√ [(119×133×189)/(17×19×21)]= V(7×7×9)=21

√ [(119×133×189)/(17×19×21)]= V(7×7×9)=21

**9. Ans-4**

When the sum of

decimal places in numerator is equal to that in denominator under the radical

sign, the decimals get removed..but the extra zeroes added after decimal to equalize

the decimal places in numerator and denominator is taken into calculation. Here

9.5 was taken as 9.500 hence after removing decimals it will be 9500

decimal places in numerator is equal to that in denominator under the radical

sign, the decimals get removed..but the extra zeroes added after decimal to equalize

the decimal places in numerator and denominator is taken into calculation. Here

9.5 was taken as 9.500 hence after removing decimals it will be 9500

√[(9500×85×189)/(17×19×21)]= √(500×5×9)=150

**10. Ans-1**

√[2000+√612+13]=√2000+25=

45

45

####
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