DIRECTIONS for the following three questions: Answer the questions on the basis of the information given below.A city has two perfectly circular and concentric ring roads, the outer ring road (OR) being twice as long as the inner ring road (IR). Th ?->(Show Answer!)

1. DIRECTIONS for the following three questions: Answer the questions on the basis of the information given below.A city has two perfectly circular and concentric ring roads, the outer ring road (OR) being twice as long as the inner ring road (IR). There are also four (straight line) chord roads from E1, the east end point of OR to N2, the north end point of IR; from N1, the north end point of OR to W2, the west end point of IR; from W1, the west end point of OR, to S2, the south end point of IR; and from S1 the south end point of OR to E2, the east end point of IR. Traffic moves at a constant speed of $$30\pi$$ km/hr on the OR road, 20$$\pi$$ km/hr on the IR road, and 15$$\sqrt5$$ km/hr on all the chord roads.The ratio of the sum of the lengths of all chord roads to the length of the outer ring road is

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By: anil on 05 May 2019 02.30 am

Let the radius of outer circle be 2R and the centre of both the circles be O.
Triangle $$ON_2E_1$$and all the other 3 similar triangles form a right angle at the centre . SO using pythagoras theorem the value of chords come out to be $$sqrt5$$ * R so total length of the chords 4 * $$sqrt5$$ * R And circumference is equal to 2 *Pi*2R . Ratio gives option C.

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MCQ-> DIRECTIONS for the following three questions: Answer the questions on the basis of the information given below.A city has two perfectly circular and concentric ring roads, the outer ring road (OR) being twice as long as the inner ring road (IR). There are also four (straight line) chord roads from E1, the east end point of OR to N2, the north end point of IR; from N1, the north end point of OR to W2, the west end point of IR; from W1, the west end point of OR, to S2, the south end point of IR; and from S1 the south end point of OR to E2, the east end point of IR. Traffic moves at a constant speed of $$30\pi$$ km/hr on the OR road, 20$$\pi$$ km/hr on the IR road, and 15$$\sqrt5$$ km/hr on all the chord roads.The ratio of the sum of the lengths of all chord roads to the length of the outer ring road is
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MCQ-> Read the following passage carefully and answer the questions given at the end.Passage 4Public sector banks (PSBs) are pulling back on credit disbursement to lower rated companies, as they keep a closer watch on using their own scarce capital and the banking regulator heightens its scrutiny on loans being sanctioned. Bankers say the Reserve Bank of India has started strictly monitoring how banks are utilizing their capital. Any big-ticket loan to lower rated companies is being questioned. Almost all large public sector banks that reported their first quarter results so far have showed a contraction in credit disbursal on a year-to-date basis, as most banks have shifted to a strategy of lending largely to government-owned "Navratna" companies and highly rated private sector companies. On a sequential basis too, banks have grown their loan book at an anaemic rate.To be sure, in the first quarter, loan demand is not quite robust. 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