Hello Samyak!When A gives B a head start of 40 m he wins by 19s , therefore when A travels 1000m B travels 1000 - 40 - 19v m, where v is the speed of ...

Hi Nancy! (1+x)(1+2x)= 15/8 => 2x² + 3x - 7/8 = 0 =>16x² + 24x - 7 = 0 =>x= 1/4= 25%

Yes we can by using Euler / Carmichael Theorem It reduces to 7^8 + 9^8 mod 64. 🙂

Hi Samyak , Approach : Using binomial expansions . If you have any doubts feel free to write back 7^2008 + 9^2008 mod 64 ( 8 -1) ^2008 +...

Hi Nancy! Let the number of students be x . 65 % pass the exam in their first attempt, so 35% re-take the exam in the 2nd year i.e = 35x/100 = 7x/2050...

Hi Nancy , Let the original weight of the watermelon be x gm. Water : 85 % of x Solid Pulp : 15 % of x 30 g water evaporates so , New ...

Hi Gaurav ! PFA the Solution

Hi Nilesh ! Let A is the starting point and B is the point where Appu and Gappu meet the first time . Let the smaller distance between A and B is y a...

If the candidate has inadvertently increased his height by 5/4 the correction he would need to make to go back to his original height would be to red...

Hi Nancy , Quantity of milk in the mixture = 25 litres Quantity of water in the mixture = 75 litres Let x litres of water be added in the mixture so t...

Since centroid divides the median in 2 : 1 , BO : OY = 2 : 1 OY = 6/2 = 3. OY = OX = 3. Option (B)

∆DOC ~ ∆BOA DO / OC= BO/ OA 3/6 =( x - 4)/(x -3) 3x - 9 = 6x - 24 x = 5

Hi Nilesh 🙂 Let the normal speed = s = D/t and new speed = s1 = 3D/4t s : s1 = D/t : 3d/4t = 4 : 3 .

Let the distance between his home and office is 'd' kms . Then , d/40 - 20/60 = d/60 d = 40kms.

Centroid divides the medians in 2 : 1 . So PG : GS = 2 : 1 GS = 3 cm , PG = 6 cm Again RG : GT = 2 : 1 GT = 2cm , RG = 4 cm ∆GSR is a right angled ∆ ....