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girdhari

· started a discussion

· 1 Months ago

DI ISSUE (Question: 94992.0 )

SSC ASK 10 BUT YOU GUYS AKS 20 ?????

Question:
A girl while walking diametrically across a semicircular playground, takes 3 minutes less than if she had kept walking round the circular path from A to B. If she walks 60 metres a minute, what is the diameter of the play ground?
Options:
A) 60m
B) 48m
C) 84m
D) 315m
Solution:
Ans (d) Let the radius be r, then difference in the distance

\(= (πr — 2 r) = r (π— 2)\)

\(= r\left ( \cfrac {22}{7} -2 \right )=60×3\)


\(⇒ 2r=315m\)

\([πr⇒\) semiperimeter and 2r ⇒ diameter]

Megha

· commented

· 1 Months ago

its for practice only..don't compare it with ssc...if you think its fake so do not give it na..no one is forcing you to attempt.

girdhari

· commented

· 1 Months ago

SSC ASK 10 QUESTION ONLY .... PLEASE FOLLOW PATTERN FAKE TEST SERIES
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