Question

Mr X Has to cover a certain distance , he covers 2/5th of the total distance by car , 3/10th by bus ,1/5th by auto rickshaw and the remaining 5 km by foot . What is the total distance ?

Answer 1

Mr x has to cover a certain distance
Than total distance =1/1
we can say 1\1 as 5\5 (5\5=1\1)
than total distance =5/5(5/5=10\10)
he cover distance by car=2\5(2\5=4\10)
by bus=3/10
by Ricksa =1\5(1\5=2\10)
so4\10+3\10+2\10=9\10
remain=10/10-9\10=1\10
if 1\10 =5km(by foot)
than total distance for 10\10=5*10=50km(star mean multiply)

Answer 2

The answer is 50 kilometers.


Please refer the above photograph for the used process.


KEY POINTS TO REMEMBER :-

☸️ The method of comparison should be used. We need to find two values for same thing.
Since, the values are of same thing. Therefore they both must be equal.

Now, The equal values are equated to find the value of variable (as done in the attachment).


☸️ First we need to find the total distance covered by those means which are given in variables (in this case - car, auto and bus)

Then, by subtracting the value obtained from total value we will find the variable value of that thing which is given in constant. (in this case - foot)

Then, we will equate the constant value and the variable value obtained to get the variable.


So,
The answer is 50 km.



Thanks!