# Approximation Questions Quiz For SBI PO Pre 2021, CET and Download PDF For Free at Smartkeeda

Direction: What approximate value should come in place of question mark.
Important for :
1
24.997% of 639.998 ÷ 1.996–2 =  ?
» Explain it
C
24.997% of 639.998 ÷ 1.996–2 =  ?

? ≈ 25% of 640 ÷ 2–2

? = 25 × (640 / 100) × 4

? = 160 × 4 = 640

Hence, option C is correct.

2
148.003 – 323.987 ÷ 26.991 = 0.5 × ?
» Explain it
E
148.003 – 323.987 ÷ 26.991 = 0.5 × ?

? × 0.5 ≈ 148 – 324 ÷ 27

? × 0.5 = 148 – 12

? × 0.5 = 136

? = 136 × 2 = 272

Hence, option E is correct.

3
√(728.991) ÷ √(9.003) × 7.999 + 4.992 = ?
» Explain it
C
√(728.991) ÷ √(9.003) × 7.999 + 4.992 = ?

? ≈ √729 ÷ √9 × 8 + 52

? = 27 ÷ 3 × 8 + 25

? = 9 × 8 + 25 = 72 + 25 = 97

Hence, option C is correct.

4
50.012 + 19.9992 + ? = 50.998
» Explain it
B
50.012 + 19.9992 + ? = 50.9982

502 + 202 + ? ≈ 512

? = 512 – 502 – 202

? = 2601 – 2500 – 400 = – 299

Hence, option B is correct.
5
∛ (5831.999) + 324 = ? ÷ 24.99
» Explain it
D
∛ (5831.999) + 324 = ? ÷ 24.99

∛ (5832) + 324 = ? ÷ 25

18 + 324 = ? ÷ 25

? = 25 × 342 = 8550

Hence, option D is correct.

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