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Q87 (CAPF/2012) Miscellaneous & General Knowledge › Important Days, Places & Events › Important Days, Places & Events

10 identical coins are lying on a table having head H face as the upper face. In one attempt, exactly four coins can be turned upside down. What is the minimum total number of attempts in which tail T face of all the 10 coins can be brought to be the upper face?

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SIMILAR QUESTIONS

IAS · 2005 · Q6 Relevance score: 8.08

There are 10 identical coins and each one of them has ‘H’ engraved on its one face and “T” engraved on its other face. These 10 coins are lying on a table and each one of them has ‘H’ face as the upper face. In one attempt, exactly four (neither more nor less) coins can be turned upside down. What is the minimum total number of attempts in which the “T” faces of all the 10 coins can be brought to be the upper faces ?

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Six faces of a cube are numbered from 1 to 6, each face carrying one different number. Further, 1. The face 2 is opposite to the face 6. 2. The face 1 is opposite to the face 5. 3. The face 3 is between the face 1 and the face 5. 4. The face 4 is adjacent to the face 2. Which one of the following is correct?

IAS · 2007 · Q20 Relevance score: -4.14

Three dice (each having six faces with each face having one number from 1 to 6) are rolled. What is the number of possible outcomes such that at least one dice shows the number 2?