Simplification Test 1

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Question : 12 of 40

Marks: +1, -0

45% of

√2025÷0.01=(x)^2÷25

3
$(81)^2$
81
9
None of these

Solution:

45 \%

of

(√{2025} ÷ 0.01=(x)^{2} ÷ 25)

⇒ 45 \%

of

45/0.01=(x)^{2}+25

⇒(45 \/ 100) × 45 ÷ 0.01=(x)^{2} ÷ 25

⇒ 20.25 ÷ 0.01=(x)^{2} ÷ 25

⇒ 2025=(x)^{2} ÷ 25

⇒ 2025 × 25=(x)^{2}

⇒(x)^{2}=50625

x=± 225

(OR)

√{2025} × \;{45}/{100} ÷ 0.01=\;{2^{2}}/{25}

=>45 × \;{45}/{100}=\;{?^{2}}/{25}

=>?^{2}=45 × 45 × 25=5^{2} × 5^{2} × 3^{2} × 3^{2}

∴ ?=5 × 5 × 3 × 3=225

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