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one more hard mathematical puzzle...

This is a discussion on one more hard mathematical puzzle... within the Mathematical Puzzles forums, part of the Brain Gym category; Using the mathematical symbols (,+,-,*,/,) can you make following equation become true. 9 8 7 6 5 4 3 2 1 = 2021 Note: Don't combine the numbers. For example 987+...

Geeks Talk > Brain Gym > Mathematical Puzzles one more hard mathematical puzzle...

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#1 (permalink)   10-19-2007

psuresh1982 Contributing Member   Join Date: Sep 2006 Location: bangalore, india Posts: 1,007 Thanks: 0 Thanked 71 Times in 60 Posts

one more hard mathematical puzzle... Using the mathematical symbols (,+,-,*,/,) can you make following equation become true. 9 8 7 6 5 4 3 2 1 = 2021 Note: Don't combine the numbers. For example 987+65.... ------------------- suresh

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#2 (permalink)   10-26-2007

3roses Junior Member   Join Date: Aug 2007 Posts: 22 Thanks: 4 Thanked 0 Times in 0 Posts

Re: one more hard mathematical puzzle... Is it necessary to use all those mathematical symbols?

#3 (permalink)   10-26-2007

psuresh1982 Contributing Member   Join Date: Sep 2006 Location: bangalore, india Posts: 1,007 Thanks: 0 Thanked 71 Times in 60 Posts

Re: one more hard mathematical puzzle... No. That is not necessary. ------------------- suresh

#4 (permalink)   10-26-2007

3roses Junior Member   Join Date: Aug 2007 Posts: 22 Thanks: 4 Thanked 0 Times in 0 Posts

Re: one more hard mathematical puzzle... Is it necessary that the numbers must be in the given order?

#5 (permalink)   10-26-2007

psuresh1982 Contributing Member   Join Date: Sep 2006 Location: bangalore, india Posts: 1,007 Thanks: 0 Thanked 71 Times in 60 Posts

Re: one more hard mathematical puzzle... yes. It is necessary.

#6 (permalink)   10-30-2007

psuresh1982 Contributing Member   Join Date: Sep 2006 Location: bangalore, india Posts: 1,007 Thanks: 0 Thanked 71 Times in 60 Posts

Re: one more hard mathematical puzzle... Here is a big clue for you my friends... * = using 4 times. + = using 3 times. / = using 1 time. ( = using 1 time. ) = using 1 time. - = using 0 time. ----------------- suresh

#7 (permalink)   11-01-2007

3roses Junior Member   Join Date: Aug 2007 Posts: 22 Thanks: 4 Thanked 0 Times in 0 Posts

Re: one more hard mathematical puzzle... The answer is 9*8*7*(6-5)*4+3+2*1 = 2021

#8 (permalink)   11-02-2007

psuresh1982 Contributing Member   Join Date: Sep 2006 Location: bangalore, india Posts: 1,007 Thanks: 0 Thanked 71 Times in 60 Posts

Re: one more hard mathematical puzzle... What a wounderful answer this was. You deserved it 3roses. Keep it up. ------------------- suresh

Geeks Talk > Brain Gym > Mathematical Puzzles

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