CSAT Maths for IAS Prelims | Permutation & Combination For UPSC CSAT | CSAT Maths Syllabus Questions
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homework Ans: b)2only: explanation: statement 1 wrong coz if 1 letter goes wrong in wrong envelope then that envelope letter will also go wrong in some another wrong envelope dat means not exactly 1 but 2 letter will go in wrong envelope. 2nd statement Right coz 4 envelope & 2 letters combination so 4C2= 6 also if letters are L1 L2 L3 L4 then cases will be (L1 L2) (L1 L3) ( L1 L4) (L2 L3) (L2 L4) (L3 L4) only 6 ways possible (L2 L1)lyk dat reverse not possible coz its combination & not permutation ,here order of arrangment doesn't matter as sir give ex of ab only & not ba. coz they both r same=1 in combination. so statement 1 wrong & statement 2 Correct so Ans= B) 2 only only 2nd statement Correct
@adarshkalandria2853
17 күн бұрын
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Part 4 👏👏
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Homework - option B
guru ji👌👌
Wow
One wrong letter disturbed two right address. (a is wrong) For 4 L we also only have 4E going to correct address... So from 4 correct E we have to select 2 correctly matching i.e 4C2 = 6 ways (b is correct) Sir please correct us if we are understanding something wrong. Your teaching and approach towards Q is helping us a lot. Thank you sir🙏🙏🙏
Jai gurudev
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ans : b) 2 only ... solved
b.
Sir next class me homework solve bhi ker dijiye sir if possible. BTW Thanku sir thanku so much..
Question number 9 solve ho gya sir 👏
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@vijayfakiranavar04
28 күн бұрын
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Salute to hard work Sir. Grateful.
B
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Sir question niche likawa Diya kro and stament ke words thoda bada hona chiye
b
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yo sir
Without formulq solve kijiye
Solve hoga homework question
Homework solved only 2 is correct
Vishnu Dutt sir zindabaad
Sir, I could do the 9th question easily. Thank you so much❤❤I hope you get everything in life🤌🏻
@ankitamondal7048
Ай бұрын
Can you explain how??
@SharmaRsRaiyan
26 күн бұрын
@@ankitamondal7048 try to solve it in practical basis. jese sari condition L1-E1 correct ho toh more than one incorrect jani ki sambhvna h kyunki one pairs khrab hua toh two losses hoga
Sir question ka matlab v samjha Diya karye plzzz English samajh nhi aata he isliye answer v wrong ho jata he
Sir yaha to solve ho jata h but bad me solve nhi hota plzz helpp