A boy imagined four-digit multiple of 5 with different digits. If the first digit is erased, the obtained number is multiple of 9. If the second digit of imagined number is erased, the obtained number is multiple of 11. If the third digit of imagined number is erased, the obtained number is multiple of 7. How many numbers satisfy given conditions? A 1 B 2 3 4

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A: Topic:- permutation and combinations

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A: Given: Length of access code = 5 Here, first digit cannot be 0 and the last digit will be even.

Q: The product of two numbers are 12 and there Least Common Multipleis 6 then Great est Common Divisor…

A: The product of two numbers are 12. The L.C.M is 6.

Q: The product of two numbers are 12 and there Least Common Multipleis 6 then Greatest Common Divisor…

A: See the detailed solution below.

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A: h-505≥1.645 On simplification, we get ⇒h-505≥1.645⇒h-505×5≥1.645×5⇒h-50≥8.225⇒h-50≥8.225   or…

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Q: A boy imagined four-digit multiple of 5 with different digits. If the first digit is erased, the…

A: Suppose the number be xyzw and x,y,z,w are different numbers. Now the number is multiple of 5. so W…

Q: The product of two numbers are 12 and there Least Common Multipleis 6 then Great est Common Divisor…

A: Given  Product of Two numbers (P) = 12 Least Common Multiple (LCM) = 6

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A: Here n  N and n&lt; 2000. So, n= 1,2,3,........,1999.

Q: A boy imagined a four-digit multiple of 5 with different digíts. If the first digit is erased, the…

A: As per our guideline we are allowed to do 1 question at a time. Please post other questions next…

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A: Consider John's age as J, Peter age's as P and Alice age as A. From given, J=2P, P=A+5 and J+5=3A.

Q: A boy imagined a four digit multiple of 5 with different digits. If the first digit is erased the…

A: Thanks for the question :)And your upvote will be really appreciable ;)

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A: The answer is

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Q: which

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Q: If n E N and n< 2000, how many numbers n have the property that the sum of the digits of n and the…

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Q: A realtor uses a lock box to store the keys to a house that is for sale. The access code for the…

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