Hello Samyak, Selecting 7 out of given 10 letters is same as not selecting 3letters out of 10 Hence , Three case : (i)All same ( ppp) 2 ways ...

An easier approch :

Solution :

Hint : Area Base Ratio - Ratio of area of triangles having base on the same line and third vertex common is equal to the ratio of length of bases of t...

Triangle MEC ~ Triangle BEA Area MEC / Area BEA = MC²/AB² = 1²/2² If , Area MEC = x then Area AEB = 4x EC : AE = 1 : 2 hence area BEC = 2x Area [Squ...

Join E - A and D - A the angle formed ( EAD ) will be 30ºSo the angle formed by the side of the square at center = 60º Hence, Equilateral triangle R...

Hello Richa , All the options seem wrong the correct answer is 10 - 2sqrt{15}

P² - 4 =( P - 2)( P +2) Here , P - 2 and P + 2 are primes . [ Difference between primes => P + 2 - ( P -2) = 4 ] 7 and 11 => P = 9 13 and...

Hello Samyak , Is it 8 ?

Hello Richa PFA the solution.

AC and AB are circular arcs so AC = AB = BC = r ( Radii ) Hence , ABC is an equilateral triangle .

Hello Richa , In triangles ADC and BDE Angle A = Angle B Angle D = Angle D (Each 90) Hence , triangle ADC similar triangle BDE AD/CD = ...

Hello Richa PFA the approch

Hello Richa We know , Selling Price = Cost Price - Loss Hence , SP of 100 kg = CP of 100 kg - SP of 20 kg SP of 120 kg = CP of 100 kg SP : CP = 10 : 1...