The previous profit percentage is not known, so we cannot calculate the increase in profit percentage. Hence , Option D

When both ( chocolates and boxes ) identical make cases : Distributing 1 , 2, 3 ,4 , ......., 9 , 10 chocolates we are left with 57 - 55 = 2 chocola...

Hello Richa , See the last example here ,

Alternate Approach : We know 122 ends with __44, i.e last 2 digits repeatingSo the square must be (50k - 12)2 or (50k + 12)2122 = 144 382 = 1444 622 ...

Hello Samyak , Let the four digit number be aabb 1100a + 11b = x²Clearly , x is a multiple of 11 so , 1100a + 11b = (11y)² 100a+ b = 11y² a + b mod...

Approach for third question :

Sides: a, a and 1 Two cases: (i) a is an even integer , sum of two even integer and 1 is always odd (ii) a is an odd integer , odd integer + odd in...

Hello Diksha, Number of whole number solutions for a + b + c + .......( r terms ) = N => ( N + r -1) C ( r -1)

This problem is similar to the question of the day : 25

Alternate Approach :

Hello Samyak , A __2x__ B ______5x_____C A __2y__ B __y__D________C 2y = 2x => x = y Now , DC = 4x Distance traveled by Xavier => A...

Hello Aniket , PFA the solution x = 22.5

Hello Kartikeya, It is a poorly framed question. 37.6 seems wrong to me.

Hello Richa A standard deck of card has 52 cards. Equal number of cards(13) of 4 different suits : Spade - Black Diamond -Red Heart - Red Club - Black...