Approximation problems
- 1. 5454 ÷ 54 ÷ 5 =?
Options- A. 15
- B. 25
- C. 30
- D. 20 Discuss
Correct Answer: 20
Explanation:
? = 5454 ÷ 54 ÷ 5
= 5454/(54 x 5) = 5454/270 = 20.2 ? 20
- 2. What approximate value should come in place of the question mark(?) in the following question?
?% of 218 = 3 1/ 3 x 3.3121?
Options- A. 2.5
- B. 5
- C. 10
- D. 15 Discuss
Correct Answer: 5
Explanation:
?% of 218 = 31/3 x 3.3121
⇒ 218 x ?/100 = 10/3 x 3.3121
∴ ? = 10/3 x 3.3121 x 100/218
= 5.064 = 5
- 3. 161% 3578 + 139.85 + 5/8 of 161. 56 =?
Options- A. 6000
- B. 6500
- C. 6700
- D. 5500 Discuss
Correct Answer: 6000
Explanation:
? = 161% of 3578 + 139.85 + 5/8 of 161.56
= 5760.58 + 139 .85 + 100.975
6001.405 ? 6000
- 4. 36.0001 ÷ 5.9998 x ? ? = 108.0005
Options- A. 18
- B. 16
- C. 256
- D. 325 Discuss
Correct Answer: 325
Explanation:
36.0001 ÷ 5.998 x ?? = 108.0005
? 36 ÷ 6 x ?? = 108
? 6 x ?? = 108
? ?? = 18
? = 324 ? 325
- 5. 1169.997 ÷ 18.001 + 7.0009 x 4.9898 = ? ?
Options- A. 99
- B. 9000
- C. 100
- D. 10000 Discuss
Correct Answer: 10000
Explanation:
1169.9997 ÷ 18.0011 + 7.0009 x 4.9898 = ??
? ?? ? 1170 ÷ 18 + 7 x 5 = 65 + 35 = 100
? ? = 10000
- 6. 1178.999 x 25.001 - ? ? x 16.0011 = 29075
Options- A. 25
- B. 15
- C. 575
- D. 625 Discuss
Correct Answer: 625
Explanation:
1178.999 x 25.0001 - ?? x 16.0011 = 29075
? 1179 x 25 - ?? x 16 = 29075
? 29475 - ?? x 16 = 29075
? ?? x 16 = 29475 - 29075 = 400
? ?? = 25
? ? = 25 x 25 = 625
- 7. ? 625.04 x 16.96 + 136.001 ÷ 17 =?
Options- A. 4.18
- B. 4.41
- C. 425
- D. 433 Discuss
Correct Answer: 433
Explanation:
?625.04 x 16.96 +136.001 ÷ 17 = ?
? ? = ?625 x 17 + 136 ÷ 17
= 25 x 17 + 136 ÷ 17
= 425 + 8 = 433
- 8. 134% of 3894 + 38.94 % of 134 =?
Options- A. 5000
- B. 5300
- C. 5500
- D. 5270 Discuss
Correct Answer: 5270
Explanation:
134% of 3894 + 38.94% of 134 = ?
? ? = (3894 x 134)/100 + (38.94 x 134)/100
= 5217.96 + 52.1796
= 5270.1396 ? 5270
- 9. 35% of 121 + 85% of 230.25 =?
Options- A. 225
- B. 230
- C. 240
- D. 245 Discuss
Correct Answer: 240
Explanation:
? = 35% of 121 + 85% of 230 .25
= (121 x 135)/100 + (230 x 85)/100
= 4235 + 195.55 = 237.85 ? 240
- 10. 22.5% of 1350 + 135% of 225 =?
Options- A. 570
- B. 610
- C. 670
- D. 630 Discuss
Correct Answer: 610
Explanation:
? = 22.5% of 1350 + 135 % of 225
= (1350 x 225)/100 + (225 x 135)/100
= 303.75 + 303.75 = 607.5 ? 610
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