Parakrima band members are late for a concert in the evening. On their way, they come across a cracked bridge which has no lighting. The bridge is strong enough to hold at most two of them, and they have only one torch with them. Andy can get across the bridge in 2 minutes, Sandy takes 3 minutes, Kandy takes 6 minutes, but Mandy takes 9 minutes. Two band members together can move only as fast as the slower between the two, and one band member must be carrying the torch during the crossing. The band crosses the bridge in such a manner that the total time taken is minimum.

Who are the first two person to move across the bridge?

Option 1 -

Kandy, Mandy

Option 2 -

Andy, Sandy

Option 3 -

Kandy, Sandy

Option 4 -

None of these

0 3 Views | Posted 3 months ago
Asked by Shiksha User

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(c)                                                                                                                                                                 

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the highest average is Rs. 136   

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Using the data from above question, the lowest average is Rs. 100.

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We get the following table of earnings:

Persons

Win Total

Average

P

36 * 150 + 14 * 100 = 6800

136

Q

34 * 150 + 21 * 100 = 7200

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R

23 * 150 + 36 * 100 = 6850

116

S

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