Question

1.) solve the equation: 2p/25=6 and find p.

2.) find product, using suitable properties :

(26)x(58) – (16)x(58)

3.) An elevator descends into mine at the rate of 6m/min. If the descent starts from 10m above the ground level ,how long will it take to reach -350m.

4.) neha reads novel for 11/4 hours everyday . she reads entire book in 8 days . how many hours in all were required by her to read the novel ?

​

Answer 1

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\tt{\therefore{Time\:taken=3600\:sec}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\begin{gathered}\green {\underline \bold{Given : }} \\ \tt{: \implies Initial \: velocity(u) = 6 \: m \: {min}^{ - 1}} \\ \\ \tt{ : \implies Distance(s) = 360 \: m} \\ \\ \red{\underline \bold{To \: Find : }} \\ \tt{: \implies Time\:taken =?}\end{gathered}$

• According to given question :

$\begin{gathered}\tt{ \circ \:Initial \: speed = 6 \times \frac{1}{60} = 0.1 \: m/s} \\ \\ \bold{as \: we \: know \: that} \\ \tt{: \implies s = ut + \frac{1}{2} {at}^{2} } \\ \\ \tt{: \implies 360 = 0.1 \times t} \\ \\ \tt{: \implies t = \frac{360}{0.1} } \\ \\ \green{\tt{: \implies t = 3600 \: sec}} \\ \\ \tt{\green{\therefore \: Time \: taken = 3600 \: sec}}\end{gathered} </p><p></p><p>$

$\begin{gathered}\purple{\tt{ \circ \:Some\: formula\:related\:to\:topic }} \\ \pink{\circ\:\tt{v=u+at}} \\ \\\pink{\tt{\circ\: v^{2}=u^{2}+2as}}\end{gathered} </p><p>$