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At t =0 minute, one wheel begins to spin at 5 revolutions/ minute and the other at 4 revolutions /minute.

Upto t = 1 minute, how many times the observer would see only four spokes

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Two wheels, each with four spokes, are mounted one behind the other and aligned such that an observer sees only four spokes. At t =0 minute, one wheel begins to spin at 5 revolutions/ minute and the o

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If m and n are whole numbers such that

\begin{aligned} m^n=121 \end{aligned}

, the value of \begin{aligned} (m-1)^{n + 1} \end{aligned} is

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, the value of \begin{aligned} (m-1)^{n + 1} \end{aligned} is

HCF of

\begin{aligned}

2^2 \times 3^2 \times 5^2, 2^4 \times 3^4 \times 5^3 \times 11

\end{aligned} is

\begin{aligned}

2^2 \times 3^2 \times 5^2, 2^4 \times 3^4 \times 5^3 \times 11

\end{aligned} is