Question

G simplification problems for bank X Online Test Testbook 2 . https://testbook.com/bank-clerk/tests/5cb42befah85630562299cf/l-solutions My Tests Full Test 2 SECTIONS English Language Numerical Ability Ral Reasoning A Question No.14 Slipped Your 00 03 Avg: 00:38 Marks View in Engle A 500-meter-long Gatimaan express moving with an average speed of 180 km/hr crosses a platform in 16 sec seconds. Find the time taken by a man who is walking with a speed of 10 km/h to cross the platform? Save A Repe 108 secs 102 secs 100 secs 105 secs None of these

Bank Exams

Maths

Solution

189

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Let lousth of plat boom be ( l ). ( Rightarrow quad V_{text {train }}=180 mathrm{km} / mathrm{mr} ) ( 180 times frac{5}{18}=50 mathrm{m} / mathrm{sa} ) ( begin{aligned} Rightarrow quad & text { time = distance } & text { speer of main } end{aligned} ) ( Rightarrow ) length of ( forall alpha a t / operatorname{sen} m=300 mathrm{m} ) ( begin{aligned} V operatorname{man} &=10 mathrm{Km} / mathrm{hr}: 10 times frac{5}{18} mathrm{mls} &=frac{25}{9} mathrm{mls} Rightarrow & 300=frac{25}{9} times 2 end{aligned} ) ( Rightarrow quad t=108 quad sec cdot sqrt{10+06+10 u} )