Hello and welcome to exampundit. Here is a set of Quantitative Aptitude Quiz for SBI PO 2018 Prelims exam. The following set consists Approximation problems.    
  1. 6750.24 / ∛26.86 * 5√9 * 6√25 = ? * 134.67 * 2.56 * 2.123 / 4.120
1) 4000       2) 6000 3) 5000     4) 7000 5) 8000   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 3 Explanation: 6750 / ∛ 27 * 5* 3 * 6 * 5 = ? * 135 * 3 * 2/4       6750/3 * 15 * 30 = ? * 135 * 3 * 0.5     (6750 * 5 * 30) / 135 * 3 * 0.5 =?     1012500 / 202.50 =?     ? = 5000 [/su_spoiler]  
  1. 33.33% of 4525 – 37.24% of 3430 + 5.67% of 2420 =? ² + √48.5 + ∛ 26.7
1) 17              2) 19 3) 18             4) 16 5) 20   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 2 Explanation: 33% * 4525 – 37% * 3430 + 6% * 2420 =? ² + 7+ 3     149325/100 – 126910/100 + 14520/100 =? ² +10 1638 – 1269 – 10 =? ² ?² = 359 ?= 19 [/su_spoiler]  
  1. 3232.23 + 2470.125 + 2627.87 + 5607.92 – 2323.25 + 1597.98 – 2062.50 = √ 82 + 2 √ 99 + ∛126 - ?²
1) 106             2) 105 3) 104               4) 107 5) 108   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 2 Explanation: 3232 + 2470 + 2628 + 5608 – 2323 + 1598 – 2063 = 9 + 2 * 10 + 5 +? ² ?² = 11116 ?= 105 [/su_spoiler]  
  1. 46% of 7864.224 * [750 – (752.60 – 650.23) + 4532.95] =? * √ 170 * √ 24.95
1) 288246            2) 288248 3) 288247              4) 288245 5) 288249   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 3 Explanation: 46% * 7864 * [ 750 – ( 753 -650) + 4533] = ? * 13 * 5 3617 * [ 750 – 103 + 4533] = ? * 65 ( 3617 * 5180 )/ 65 = ? 288247 = ? [/su_spoiler]    
  1. ? % of 200 – 10.10% of 2998.97 - 6562.19 - 2315.20 * 3.1 = √1850 + √ 196 + √ 169 + √ 100 + √ 400
1) 6940     2) 6937 3) 6942    4) 6935 5) 6948   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 1 Explanation: ?% 200 – 10% of 3000 - 6562 - 2315 *3 =  43 + 14 + 13+ 10 + 20 2 * ?  - 300 -6562 - 6945 = 70 ? = 6938.5 ? = 6940 [/su_spoiler]  
  1. ∛ 17575.96 + √ 531440.96 + ∛ 7962623.85 - ∛ 10647.75 = ?% of 7932.56
1) 11                      2) 12   3) 13 4) 14                  5) 15   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 2 Explanation: ∛17576 + √ 531441 +∛ 7962624  - ∛ 10648 = ?% of 7933 26 + 729 + 200 – 22 = ?% of 7933 933 = ? % 7933 ? = 11.76 ?= 12 [/su_spoiler]  
  1. √1020/ 6.23 * √2601/ √289 / (11.24/24.39) / (56.26 / √143.95) =? ∛346 * ∛ 514
1) 0.62                      2) 0.63 3) 0.65                4) 0.66 5) 0.68   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 1 Explanation: 32/6 * (51/17) / (11 / 24) / (56 / 12) =? * 7 * 8 5 * 3 * 0.46 * 5 =? * 7 *8 ? = 0.62 [/su_spoiler]  
  1.  ∛ 728.675 / ∛ 26.86 * 127.76 * ∛ 65 * ∛ 215.73 / √38 = ∛? – 22.24 * ∛ 215 / √26
1) 11              2) 12    3) 13    4)14 5) 15   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 2 Explanation: ∛729 / ∛27 * 128 * ∛64 * ∛216 /√36 = ∛? – 22 * ∛215 / √25 9/3 * 128 * 4 * 6/6 = ∛? – 22 * 5 / 5 1536 = ∛? – 22 ∛? = 1558 ? = 11.59              ?= 12 [/su_spoiler]  
  1. 39% of 1755.25 + 80% of 241.12 + 49% of 1231.16 = ? ² + √ 36.20 + √ 80.95
1) 36                  2) 37 3) 35                   4) 39 5) 34   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 4 Explanation: 40% * 1755 + 80% * 240 + 50% * 1230 = ?² + √ 36 + √ 81 702 + 192 + 615 = ?² + 6 + 9 1494 = ?² ? = 38.65 ?= 39 [/su_spoiler]  
  1.  √ 120000 + 34.89 + 150.05 – 25.69 – 65.12 + 368.23 + 96.85 – 30.12 = ? + 75.123 – 65.123 + √144 - ∛ 125
1) 850                   2) 857   3) 867   4) 880 5) 885   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 2 Explanation: 346 + 35 + 150 – 26 – 65 + 368 + 96 – 30 = ? + 75 – 65 + 12 – 5 874 = ?  + 17 ? = 857 [/su_spoiler]     Regards Team Exampundit