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

Question :26

99 × 21 - $^3$$√{?}$ = 1968

Answer: (c)

$^3$$√{?}$ = 99×21-1968=111

∴? = $(111)^3$ = 1367631

Question :27

$√{?} + 17 = √{961}$

Answer: (d)

$ √{?} = 31-17=14=√{196}$

Question :28

$ √?$ - 63=$9^2$

Answer: (e)

$ √{?}$ – 63 = $9^2$

⇒$√{?}$ = 81 + 63 = 144

⇒? = $(144)^2$ = 20736

Question :29

If $(46)^2$ is subtracted from the square of a number, the answer so obtained is 485. What is the number ?

Answer: (b)

Let the number be x

∴ $x^2 – (46)^2$ = 485

⇒ $x^2 = 485 + (46)^2=2601$

∴ x = $√2601$ = 51

Question :30

?÷ 46 × 16 = 368

Answer: (a)

${?/46}×16$= 368

⇒ ? =${368×46}/{16}$=1058

ssc chsl tier 1 2023 IMPORTANT QUESTION AND ANSWERS

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