mcq on simplification with answers for ssc gd
81) \(\displaystyle 8648-7652=?\times 40\)
(a) 24.7
(b) 28.9
(c) 27.4
(d) 25.9
(e) None of these
Solution: (e)
\(\displaystyle 996=?\times 40\)
\(\displaystyle ?=\frac{{996}}{{40}}=24.9\)
82) 22% of 364 – ? = 23
(a) 50.02
(b) 57.08
(c) 53.16
(d) 59.14
(e) None of these
Solution: (b)
? = 80.08 – 23 = 57.08
83) 14.5% of 608 = ?
(a) 88.16
(b) 86.18
(c) 81.68
(d) 86.88
(e) None of these
Solution: (a)
? = 14.5% of 608 = 88.16
84) \(\displaystyle 840\div 40\div 0.5=?\)
(a) 8.5
(b) 21
(c) 10.5
(d) 42
(e) None of these
Solution: (d)
\(\displaystyle ?=\frac{{21}}{{0.5}}=42\)
85) 19.5% of 524 = ?
(a) 102.1 8
(b) 122.81
(c) 120.18
(d) 112.81
(e) None of these
Solution: (a)
\(\displaystyle ?=19.5\%of524=524\times \frac{{19.5}}{{100}}=102.18\)
86) \(\displaystyle 700\div 70\div 0.5=?\)
(a) 10
(b) 2.5
(c) 1.5
(d) 20
(e) None of these
Solution: (d)
\(\displaystyle ?=700\div 70\div 0.5=700\times \frac{1}{{70}}\times \frac{1}{{0.5}}=20\)
87) \(\displaystyle 12.8\times 4.5\times 2.2=?\)
(a) 168.72
(b) 126.72
(c) 128.27
(d) 162.72
(e) None of these
Solution: (b)
\(\displaystyle ?=12.8\times 4.5\times 2.2=126.72\)
88) \(\displaystyle 55\div 5.5-0.5=?\)
(a) 11
(b) 10
(c) 8.5
(d) 10.5
(e) None of these
Solution: (e)
\(\displaystyle ?=55\div 5.5-0.5=55\times \frac{1}{{5.5}}-0.5\)
= 10 – 0.5 = 9.5
89) \(\displaystyle {{(5\times 5\times 5\times 5\times 5\times 5)}^{4}}\times {{(5\times 5)}^{6}}\div {{(5)}^{2}}={{25}^{?}}\)
(a) 10
(b) 17
(c) 19
(d) 12
(e) None of these
Solution: (b)
\(\displaystyle {{25}^{?}}={{(5\times 5\times 5\times 5\times 5\times 5)}^{4}}\times {{(5\times 5)}^{6}}\div {{(5)}^{2}}\)
\(\displaystyle {{(25\times 25\times 25)}^{4}}\times {{(25)}^{6}}\div {{25}^{1}}\)
\(\displaystyle {{({{25}^{3}})}^{4}}\times {{(25)}^{6}}\div {{25}^{1}}={{(25)}^{{12}}}\times {{(25)}^{6}}\div {{25}^{1}}\)
\(\displaystyle {{(25)}^{{12+6-1}}}={{(25)}^{{17}}}\)
? = 17
90) \(\displaystyle 8059-7263=?\times 40\)
(a) 19.9
(b) 18.7
(c) 15.9
(d) 17.7
(e) None of these
Solution: (a)
\(\displaystyle ?\times 40=8059-7263=796\)
\(\displaystyle ?=\frac{{796}}{{40}}=19.9\)
Pages:
1 2 3 4 5 6 7 8 9 10
