Total work : 60 units [ LCM of 10,12 and 15] Raju can do the work in 10 days so he does 60/10 = 6 units / day similarly Vicky does 5 units/ day and T...

Let’s assumeTime taken by A to do the work : x days so time taken by B: 2x days work done by A in 1 day : 1/x units Work done by B in 1 day : 1/2x uni...

We can assume anything x , 2x , 3x …10x,… Since ratio of milk and water is 3 : 7 so it is easier to divide 10x in this ratio.

Alternative Approach: % of milk in original mixture : 30% pure milk contains 100% milk % of milk in Final mixture : 11/25 x 100 = 44% [ 30%] ...

Hello Nancy! Let the total volume of mixture be 100ml and the volume of the replaced mixture be 10x ml [(30- 3x )+ 10x]/(70- 7x) = 11/14 on solving ...

The remainders when 5555 and 2222 are divided by 7 are 4 and 3 respectively. Hence, the problem reduces to finding the remainder when (4) 2222 + (3)55...

We can write 50 as ( 51- 1)( 51 -1)^60 ^70 divided by 3 ( -1)^60^70 => (-1)^even = 1 Hence , 3k + 1

31 => 3 unit digit 3 32 => 9 unit digit 9 33 => 27 unit digit 734 => 81 unit digit 1 35 => 243 unit digit 336 => 729 unit digit 9 ……...

The maximum number of students can be picked from each department such that 5 students are not selected from the same department is 4. Therefore, afte...

can be any number of persons in between including zero.

Highest power of 2 in 25! = [25/2] + [25/2^2] + [25/2^3] +........12 + 6 + 3 + 1 = 22 So , the highest power of 8 in 25! = [22/3] = 7

PFA the solution :

The maximum number of students can be picked from each department such that 5 students are not selected from the same department is 4.Therefore, after...

A started to chase B when B was 27 steps ahead of A here whose 27 steps is given ? A's or B's ?

If the centre of the coin falls anywhere on smaller square , the coin lies entirely within the bigger square (tile). The probability that the coin lie...