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 = B4+3G8(B+G)×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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