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Approximation Questions with Solution for Bank and Insurance Exams

Directions: What approximate value should come in place of question mark.
1
34.99% of 499.896 + 27.99% of 1250.013 = 8 × ?
» Explain it
A
34.99% of 499.896 + 27.99% of 1250.013 = 8 × ?

8 × ≈ (35 / 100) × 500 + (28 / 100) × 1250

8 × ? ≈ 175 + 350

? ≈ (525 / 8) = 65.625

? ≈ 66

Hence, option A is correct.

2
32.019 × 16.969 + 26.032 – ?% of 1800 = 240
» Explain it
C
32.019 × 16.969 + 26.032 – ?% of 1800 = 240

32 × 17 + (26)2 – ?% of 1800 ≈ 240

544 + 676 – (? / 100) × 1800 ≈ 240

18 × ? ≈ 544 + 676 – 240

18 × ? = 980

? = (980 / 18) = 54.44

? ≈ 54

Hence, option C is correct.

3
48.88 × 3.06 + 70.09% of 60.23 – 11.986 × 2.919 + ? = 58.263
» Explain it
B
48.88 × 3.06 + 70.09% of 60.23 – 11.986 × 2.919 + ? = 58.263

49 × 3 + (70 / 100) × 60 – 12 × 3 + ? ≈ 58

147 + 42 – 36 + ? ≈ 58

? ≈ – 153 + 58

? ≈ – 95

Hence, option B is correct.
4
(17.95)2 + 25.87% of 1201 – (5/4) of 728.16 = ? – (8.98)3
» Explain it
C
(17.95)2 + 25.87% of 1201 – (5/4) of 728.16 = ? – (8.98)3

(18)2 + (26 / 100) × 1200 – (5 / 4) × 728 ≈ ? – (9)3

324 + 312 – 910 ≈ ? – 729

? ≈ 455

Hence, option C is correct.
5
[{(155 ÷ 4 ) ÷ 12.96}]2 +  (1 / 2) × (63.03 × 18.02) = (?)2
» Explain it
A
[{(155 ÷ 4 ) ÷ 12.96}]2 +  (1 / 2) × (63.03 × 18.02) = (?)2

(?)2 ≈ {155 / (13 × 4)}2 + (1 / 2) × 1134

(?)2 ≈ (3)2 + 567

(?)2 ≈ 9 + 567 = 576

? = 24

Hence, option A is correct.
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