simplification Model Questions & Answers, Practice Test for ssc chsl tier 1 2023

Question :21

12.8 × 2.5 + 8.6 = ?

Answer: (a)

? = 12.8 × 2.5 + 8.6

= 32 + 8.6 = 40.6

Question :22

628.306 + 6.1325 × 44.0268 = ?

Answer: (e)

? = 628.306 + 6.1325 × 44.0268

? ≈ 628 + 6 × 44

≈ 628 + 264 = 892 ≈ 900

Question :23

85332 –11638 – 60994 = ?

Answer: (c)

? = 85332 – 11638 – 60994

?=85332 – 72632

∴ ? = 12700

Question :24

$^3√50653$ = ?

Answer: (e)

? = $^3$$√{50623}=^3√(37)^3$=37

Question :25

$√{?}$ +136 320 of $5/8$

Answer: (d)

$√{?}$ + 136 = 320 × ${5/8}$

or $√{?}$ + 136=200

or $√{?}$ = 200 – 136 = 64

or ? = 64 × 64 = 4096

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