MCQ
The prime factorisation of $3^{13}-3^{10}$ is
- A$3^{13} \times 2 \times 13$
- B$3^{11} \times 2 \times 13$
- C$3^{10} \times 2 \times 13$
- DNone of these
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Column $I$
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Column $II$
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| $(a)$ | A man goes $10m$ due east and then $20m$ due north. His distance from the starting point is $.... m.$ | $(p)$ | $25\sqrt{3}$ |
| $(b)$ | In an equilateral triangle with each side $10\ cm,$ the altitude is $ ..... \ cm.$ | $(q)$ | $5\sqrt{3}$ |
| $(c)$ | The area of an equilateral triangle having each side $10\ cm$ is $.... \ cm^2.$ | $(r)$ | $10\sqrt{5}$ |
| $(d)$ |
The length of diagonal of a rectangle having length $8m$ and breadth $6m$ is $.... m.$
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$(s)$ | $10$ |