Which is the largest number among 3- 2 -3- 7 -6- 5 -2- 20 numbers -

The correct option is D 2√( 20 ) 3√(2)=3(1.414)=4.242 3√(7)=3(2.645)=7.935 6√(5)=6(2.236)=13.416 2√(20)=2(4.472)=89.44 So 2√(20) is ...

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Standard X

Mathematics

Distance between Two Points on the Same Coordinate Axes

Which is the ...

Question

Which is the largest number among $3 \sqrt{2}, 3 \sqrt{7}, 6 \sqrt{5}, 2 \sqrt{20}$ numbers ?

3 \sqrt{2}

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3 \sqrt{7}

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6 \sqrt{5}

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2 \sqrt{20}

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Solution

The correct option is D $2 \sqrt{20}$
$3 \sqrt{2} = 3 (1.414) = 4.242 3 \sqrt{7} = 3 (2.645) = 7.935 6 \sqrt{5} = 6 (2.236) = 13.416 2 \sqrt{20} = 2 (4.472) = 89.44$
So $2 \sqrt{20}$ is largest

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Similar questions

Question 6

Which of the following expressions show that rational numbers are associative under multiplication.
(a) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = (\frac{2}{3} \times \frac{- 6}{7}) \times \frac{3}{5}$
(b) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = \frac{2}{3} \times (\frac{3}{5} \times \frac{- 6}{7})$
(c) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = (\frac{3}{5} \times \frac{2}{3}) \times \frac{- 6}{7}$
(d) $(\frac{2}{3} \times \frac{- 6}{7}) \times \frac{3}{5} = (\frac{- 6}{7} \times \frac{2}{3}) \times \frac{3}{5}$

Question 6

Q. Name the property of rational numbers illustrated by the given statement.

\frac{- 3}{2} \times \frac{5}{4} + \frac{- 3}{2} \times \frac{- 7}{6} = \frac{- 3}{2} \times (\frac{5}{4} + \frac{- 7}{6})

Q. Using the given pattern, find the missing numbers.

1^{2} + 2^{2} + 2^{2} = 3^{2}

2^{2} + 3^{2} + 6^{2} = 7^{2}

3^{2} + 4^{2} + 12^{2} = 13^{2}

4^{2} + 5^{2} + 20^{2} = 21^{2}

5^{2} + 6^{2} + 30^{2} = 31^{2}

6^{2} + 7^{2} + 42^{2} = . . .^{2}

Q. What should come next in the following number series?
9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 7 6 5 4 3 2 1

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Which is the largest number among 3√2,3√7,6√5,2√20 numbers ?

The correct option is D 2√203√2=3(1.414)=4.2423√7=3(2.645)=7.9356√5=6(2.236)=13.4162√20=2(4.472)=89.44So 2√20 is largest

Which is the largest number among $3 \sqrt{2}, 3 \sqrt{7}, 6 \sqrt{5}, 2 \sqrt{20}$ numbers ?

The correct option is D $2 \sqrt{20}$
$3 \sqrt{2} = 3 (1.414) = 4.242 3 \sqrt{7} = 3 (2.645) = 7.935 6 \sqrt{5} = 6 (2.236) = 13.416 2 \sqrt{20} = 2 (4.472) = 89.44$
So $2 \sqrt{20}$ is largest