simplification Model Questions & Answers, Practice Test for ssc chsl tier 1 2023
ssc chsl tier 1 2023 SYLLABUS WISE SUBJECTS MCQs
Number System
Simplification
Powers Surds & Indices
Ratio Proportion & Partnership
Percentages
Profit & Loss
Time & Work
Time & Distance
Simple Interest & Compound Interest
Mensuration: Area & Volumes
99 × 21 - $^3$$√{?}$ = 1968
Answer: (c)
$^3$$√{?}$ = 99×21-1968=111
∴? = $(111)^3$ = 1367631
$ √?$ - 63=$9^2$
Answer: (e)
$ √{?}$ – 63 = $9^2$
⇒$√{?}$ = 81 + 63 = 144
⇒? = $(144)^2$ = 20736
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
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