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Question-94581

Question Number 94581 by ar247 last updated on 19/May/20 Commented by prakash jain last updated on 19/May/20 $$\mathrm{Please}\:\mathrm{two}\:\mathrm{things}: \\ $$$${a}.\:\mathrm{Crop}\:\mathrm{image}\:\mathrm{before}\:\mathrm{uploadimg} \\ $$$${b}.\:\mathrm{Do}\:\mathrm{notpost}\:\mathrm{same}\:\mathrm{question}\:\mathrm{again}. \\ $$$$\mathrm{Thanks}. \\…

How-many-numbers-are-there-which-contain-5-digits-and-the-sum-and-product-of-the-digits-are-both-prime-numbers-

Question Number 160109 by abdullah_ff last updated on 24/Nov/21 $$\mathrm{How}\:\mathrm{many}\:\mathrm{numbers}\:\mathrm{are}\:\mathrm{there}\:\mathrm{which} \\ $$$$\mathrm{contain}\:\mathrm{5}\:\mathrm{digits}\:\mathrm{and}\:\mathrm{the}\:\mathrm{sum}\:\mathrm{and}\: \\ $$$$\mathrm{product}\:\mathrm{of}\:\mathrm{the}\:\mathrm{digits}\:\mathrm{are}\:\mathrm{both}\:\mathrm{prime} \\ $$$$\mathrm{numbers}? \\ $$ Commented by abdullah_ff last updated on 25/Nov/21…

x-and-y-are-positive-integers-and-x-x-8y-4x-If-x-is-not-a-multiple-of-8-then-what-is-the-minimum-possible-value-for-y-

Question Number 160092 by abdullah_ff last updated on 24/Nov/21 $${x}\:\mathrm{and}\:{y}\:\mathrm{are}\:\mathrm{positive}\:\mathrm{integers}\:\mathrm{and}\: \\ $$$${x}\:×\:{x}\:−\:\mathrm{8}{y}\:=\:\mathrm{4}{x}\:\:\:. \\ $$$$\mathrm{If}\:{x}\:\mathrm{is}\:\mathrm{not}\:\mathrm{a}\:\mathrm{multiple}\:\mathrm{of}\:\mathrm{8},\:\mathrm{then}\:\mathrm{what}\:\mathrm{is} \\ $$$$\mathrm{the}\:\mathrm{minimum}\:\mathrm{possible}\:\mathrm{value}\:\mathrm{for}\:{y}? \\ $$ Answered by FongXD last updated on 24/Nov/21…

51b2cd-is-a-six-digit-perfect-square-that-is-divisible-by-both-5-and-11-What-is-the-sum-of-all-possible-values-of-it-

Question Number 160091 by abdullah_ff last updated on 24/Nov/21 $$\mathrm{51b2cd}\:\mathrm{is}\:\mathrm{a}\:\mathrm{six}-\mathrm{digit}\:\mathrm{perfect}\:\mathrm{square}\: \\ $$$$\mathrm{that}\:\mathrm{is}\:\mathrm{divisible}\:\mathrm{by}\:\mathrm{both}\:\mathrm{5}\:\mathrm{and}\:\mathrm{11}.\: \\ $$$$\mathrm{What}\:\mathrm{is}\:\mathrm{the}\:\mathrm{sum}\:\mathrm{of}\:\mathrm{all}\:\mathrm{possible}\:\mathrm{values}\: \\ $$$$\mathrm{of}\:\mathrm{it}? \\ $$ Commented by Rasheed.Sindhi last updated on 24/Nov/21…

There-are-40-oranges-20-apples-and-20-lemons-in-a-bag-What-is-the-minimum-number-of-fruits-that-you-have-to-take-out-of-the-bag-with-your-eyes-closed-before-you-are-sure-that-one-of-them-is-an

Question Number 160090 by abdullah_ff last updated on 24/Nov/21 $$\mathrm{There}\:\mathrm{are}\:\mathrm{40}\:\mathrm{oranges},\:\mathrm{20}\:\mathrm{apples},\:\mathrm{and}\: \\ $$$$\mathrm{20}\:\mathrm{lemons}\:\mathrm{in}\:\mathrm{a}\:\mathrm{bag}.\:\mathrm{What}\:\mathrm{is}\:\mathrm{the}\: \\ $$$$\mathrm{minimum}\:\mathrm{number}\:\mathrm{of}\:\mathrm{fruits}\:\mathrm{that}\:\mathrm{you}\: \\ $$$$\mathrm{have}\:\mathrm{to}\:\mathrm{take}\:\mathrm{out}\:\mathrm{of}\:\mathrm{the}\:\mathrm{bag}\:\mathrm{with}\:\mathrm{your}\: \\ $$$$\mathrm{eyes}\:\mathrm{closed}\:\mathrm{before}\:\mathrm{you}\:\mathrm{are}\:\mathrm{sure}\:\mathrm{that}\: \\ $$$$\mathrm{one}\:\mathrm{of}\:\mathrm{them}\:\mathrm{is}\:\mathrm{an}\:\mathrm{orange}? \\ $$ Commented by mr…