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Question-184126

Question Number 184126 by Noorzai last updated on 03/Jan/23 Answered by Rasheed.Sindhi last updated on 03/Jan/23 $$\because\mathrm{KK}\:\&\:\mathrm{KLK}\:\mathrm{have}\:\mathrm{same}\:\mathrm{unit}-\mathrm{digit} \\ $$$$\therefore\mathrm{K}^{\mathrm{2}} =\mathrm{10c}+\mathrm{K}\:;\:\mathrm{c}=\mathrm{0},\mathrm{1},\mathrm{2},…,\mathrm{8} \\ $$$$\mathrm{possible}\:\mathrm{values}\:\mathrm{for}\:\mathrm{K}: \\ $$$$\mathrm{K}=\mathrm{1},\mathrm{5},\mathrm{6} \\…

A-wholesaler-buys-an-article-at-32-less-12-5-she-then-sells-the-article-at-a-gain-of-25-of-her-cost-after-allowing-a-20-discount-on-her-marked-price-what-is-the-marked-price-please-sir-h

Question Number 52960 by Otchere Abdullai last updated on 15/Jan/19 $${A}\:{wholesaler}\:{buys}\:{an}\:{article}\:{at}“\:\$\mathrm{32}\: \\ $$$${less}\:\mathrm{12}.\mathrm{5\%}''.\:{she}\:{then}\:{sells}\:{the}\:{article} \\ $$$${at}\:{a}\:{gain}\:{of}\:\mathrm{25\%}\:{of}\:{her}\:{cost}\:{after}\: \\ $$$${allowing}\:{a}\:\:\mathrm{20\%}\:{discount}\:{on}\:{her}\: \\ $$$${marked}\:{price}.\:{what}\:{is}\:{the}\:{marked}\: \\ $$$${price}. \\ $$$${please}\:{sir}\:{help}\:{me}\:{thanks} \\ $$…

H-A-P-P-Y-Y-E-A-R-e-i-i-e-

Question Number 184028 by Rasheed.Sindhi last updated on 02/Jan/23 $$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\boldsymbol{\mathrm{H}}^{\boldsymbol{\mathrm{A}}^{\boldsymbol{\mathrm{P}}} \boldsymbol{\mathrm{P}}} \boldsymbol{\mathrm{Y}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\boldsymbol{\mathrm{Y}}_{\boldsymbol{\mathrm{E}}_{\boldsymbol{\mathrm{A}}} \boldsymbol{\mathrm{R}}} \:! \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\overline {\lfloor\boldsymbol{\mathrm{e}}\rfloor\lfloor\boldsymbol{\mathrm{i}}-\boldsymbol{\mathrm{i}}\rfloor\lfloor\boldsymbol{\mathrm{e}}\rfloor\lfloor\boldsymbol{\pi}\rfloor}\:\: \\ $$ Terms of…

How-many-words-can-be-made-from-5-letters-if-a-all-letters-are-different-b-2-letters-are-identical-c-all-letters-are-different-but-2-partucular-letters-cannot-be-adjacent-M-m-

Question Number 184030 by Mastermind last updated on 02/Jan/23 $$\mathrm{How}\:\mathrm{many}\:\mathrm{words}\:\mathrm{can}\:\mathrm{be}\:\mathrm{made}\: \\ $$$$\mathrm{from}\:\mathrm{5}\:\mathrm{letters}\:\mathrm{if} \\ $$$$\left(\mathrm{a}\right)\:\mathrm{all}\:\mathrm{letters}\:\mathrm{are}\:\mathrm{different} \\ $$$$\left(\mathrm{b}\right)\:\mathrm{2}\:\mathrm{letters}\:\mathrm{are}\:\mathrm{identical} \\ $$$$\left(\mathrm{c}\right)\:\mathrm{all}\:\mathrm{letters}\:\mathrm{are}\:\mathrm{different}\:\mathrm{but}\:\mathrm{2} \\ $$$$\mathrm{partucular}\:\mathrm{letters}\:\mathrm{cannot}\:\mathrm{be} \\ $$$$\mathrm{adjacent}. \\ $$$$ \\…