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Question-46411

Question Number 46411 by sandeepkeshari0797@gmail.com last updated on 25/Oct/18 Answered by $@ty@m last updated on 25/Oct/18 $${I}\:{had}\:{Rs}.\:\mathrm{100} \\ $$$${spent}\:\mathrm{20}\:{remaining}\:\mathrm{80} \\ $$$${spent}\:\mathrm{20}\:{remaining}\:\mathrm{60} \\ $$$${spent}\:\mathrm{20}\:{remaining}\:\mathrm{40} \\ $$$${spent}\:\mathrm{20}\:{remaining}\:\mathrm{20}…

Question-111774

Question Number 111774 by I want to learn more last updated on 04/Sep/20 Answered by mr W last updated on 04/Sep/20 $$\alpha=\frac{\mathrm{10}}{\frac{\mathrm{10}×\mathrm{0}.\mathrm{02}^{\mathrm{2}} }{\mathrm{2}}}=\mathrm{5000}\:{rad}/{s}^{\mathrm{2}} \\ $$$${t}=\sqrt{\frac{\mathrm{2}×\mathrm{10}×\mathrm{2}\pi}{\mathrm{5000}}}=\sqrt{\frac{\pi}{\mathrm{125}}}…

If-a-number-is-20-more-the-other-how-much-percent-is-the-second-number-less-than-the-first-please-help-

Question Number 177179 by Mastermind last updated on 01/Oct/22 $$\mathrm{If}\:\mathrm{a}\:\mathrm{number}\:\mathrm{is}\:\mathrm{20\%}\:\mathrm{more}\:\mathrm{the}\:\mathrm{other},\:\mathrm{how} \\ $$$$\mathrm{much}\:\mathrm{percent}\:\mathrm{is}\:\mathrm{the}\:\mathrm{second}\:\mathrm{number} \\ $$$$\mathrm{less}\:\mathrm{than}\:\mathrm{the}\:\mathrm{first}. \\ $$$$ \\ $$$$\mathrm{please}\:\mathrm{help}! \\ $$ Commented by Frix last updated…

7-3-with-out-calculator-

Question Number 111643 by Dwaipayan Shikari last updated on 04/Sep/20 $$\left(\frac{\mathrm{7}}{\mathrm{3}}\right)!\left({with}\:{out}\:{calculator}\right) \\ $$ Answered by mathdave last updated on 04/Sep/20 $${solution}\: \\ $$$${but}\:{x}!=\Gamma\left({x}+\mathrm{1}\right) \\ $$$${let}\left(\frac{\mathrm{7}}{\mathrm{3}}\right)!=\Gamma\left(\frac{\mathrm{10}}{\mathrm{3}}\right)=\mathrm{2}.\mathrm{8871}…

A-number-is-said-to-be-right-prime-if-despite-dropping-the-left-most-digits-successively-Number-continues-to-be-a-prime-number-For-example-223-is-a-right-prime-because-despite-dropping-2-fr

Question Number 46045 by Tawa1 last updated on 20/Oct/18 $$\mathrm{A}\:\mathrm{number}\:\mathrm{is}\:\mathrm{said}\:\mathrm{to}\:\mathrm{be}\:''\mathrm{right}\:\mathrm{prime}''\:\mathrm{if}\:\mathrm{despite}\:\mathrm{dropping}\:\mathrm{the}\:\mathrm{left}\:\mathrm{most} \\ $$$$\mathrm{digits}\:\mathrm{successively},\:\:\mathrm{Number}\:\mathrm{continues}\:\mathrm{to}\:\mathrm{be}\:\mathrm{a}\:\mathrm{prime}\:\mathrm{number}.\:\: \\ $$$$\mathrm{For}\:\mathrm{example}:\:\:\mathrm{223}\:\mathrm{is}\:\mathrm{a}\:\mathrm{right}\:\mathrm{prime}\:\mathrm{because}\:\mathrm{despite}\:\mathrm{dropping}\:\mathrm{2}\:\mathrm{from}\:\mathrm{left} \\ $$$$\mathrm{most}\:\mathrm{part},\:\mathrm{we}\:\mathrm{obtain}\:\:\mathrm{23}\:\mathrm{as}\:\mathrm{the}\:\mathrm{prime}\:\mathrm{number}.\:\mathrm{Next},\:\mathrm{even}\:\mathrm{after}\:\mathrm{dropping}\: \\ $$$$\mathrm{2}\:\mathrm{from}\:\mathrm{left},\:\:\mathrm{3}\:\mathrm{is}\:\mathrm{a}\:\mathrm{prime}. \\ $$$$\:\:\:\:\:\mathrm{How}\:\mathrm{many}\:\mathrm{two}\:\mathrm{digit}\:\mathrm{numbers}\:\mathrm{are}\:\mathrm{right}\:\mathrm{prime}\:? \\ $$ Answered by MJS…