Simplification: Quantitative Aptitude MCQ Question and Answer

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Simplification MCQ Question with Details Answer

 

Q1. 2.002 + 7.9 {(2.8 – 6.3 (3.6 – 1.5) + 15.6)}

(a) 2.002

(b) 4.2845

(c) 4.0843

(d) 42.845

Answer: (d) 42.845

Solution:  2.002 + 7.9 {(2.8 – 6.3 (3.6 – 1.5) + 15.6)}

= 2.002 + 7.9 (2.8 – 6.3 × 2.1 + 15.6)

= 2.002 + 7.9 (2.8 – 13.23 + 15.6)

= 2.002 + 7.9 × 15.17

= 2.002 + 40.843 = 42.845

Q2. The value of 3÷[(85)÷{(42)+(2+813)}]

(a) 1517

(b) 1317

(c) 1519

(d) 1319

Answer: (b)

Solution:

3÷[(85)÷{(42)÷(2+813)}]

=3÷[3÷{2÷3413}]

=3÷[3÷1317]=3÷3×1713

=3×133×17=1317

Q3.  9129of3311÷517of79=?

(a) 54

(b) 8

(c) 83281

(d) 9

Answer: (b) 8

Solution:

9129of3311÷517of79

=9119of3611×1367×79

=94×14=8

 

Q4.  777.07 + 77.77 + 0.77 + 7.07 + 7 + 77 = ?

(a) 946.78

(b) 946.68

(c) 964.68

(d) 946.86

Answer: (c) 964.68

Solution:

s-quiz1-a4

Q5. Find the value of 99917+99927+99937+99947+99957+99967

(a) 5997

(b) 5979

(c) 5994

(d) 6997

Answer: (a)

Solution: 99917+99927+99937+99947+99957+99967

=999+17+999+27+999+37+999+47+999+57+999+67

6×999+1+2+3+4+5+67=5994+3=5997

Q6. Find the value of 13+115+135+163+199

(a) 1011

(b) 911

(c) 511

(d) 711

Answer: (c)

Solution: 13+115+135+163+199

=11.3+13.5+15.7+17.9+19.11

=12(1111)=511

 

Triks: 1n(n+2)+1(n+2)(n+4)+.+1{n(m2)}(n+m)

=12(1n1n+m)

Q7. Find the value of  0.ˉ3+0.ˉ6+0.ˉ7+0.ˉ8

(a) 2310

(b) 223

(c) 20.¯35

(d) 5310

Answer: (b)

Solution: 0.ˉ3+0.ˉ6+0.ˉ7+0.ˉ8

=39+69+79+89=3+6+7+89=249=223

Q8. 1/4th of number of boys and 3/8th of number of girls participated in annual sports of the school. What fractional part of total number of students participated?

(a) 32%

(b) 20%

(c) 36%

(d) Data inadequate

(e) None of the above

Answer: (d)

Solution:  total number of students participated = B4+3G8

Required percentage = $\frac{\frac{\mathrm{B}}{4}+\frac{3\mathrm{G}}{8}}{\left( \mathrm{B}+\mathrm{G} \right)}\times 100

Since, B and G are unknown ; Clearly given Data is  inadequate.

Q9. Simplify : 1+11+22+31+45

(a) 11117

(b) 157

(c) 1617

(d) 12117

Answer: (a) 11117

Solution: 1st1+45=95

2nd2+3×59=113

3rd1+2×311=1711

4th1+1117=11117

Q10. . If x =  1+11+11+11+12 then, the value of 2x+74  is

(a) 3

(b) 4

(c) 5

(d) 6

Answer: (c) 5

Solution: 1st1+12=32

2nd1+23=53

3rd1+35=85

4th1+58=138

2x+74=2×138+74=5

 

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