dimagi paheli - 20 | Paheiyan | Riddle in hindi #shorts

In a class, 30% students fail in English, 20% students fail in Hindi and 10% students fail in both English and Hindi. A student is chosen at random, then what is the probability he fail in English, if he has failed in Hindi?

The Table shows the distribution of the marks obtained by various student in a class. . What is the ratio of the number of students getting gt= 20% in English and gt= 80% in Hindi to gt= 40% in English and gt= 60% in Hindi?

The magnetic induction due to a short magnet at a distance of 20 cm on the axial line of a short bar magnet is 1.5xx10^(-6)" Wb/m"^(2) . What is the magnetic induction at a point on its axis at a distance of 5 cm from the centre of the magnet?

If a capacitor of 2.0muF is charged to 20V and then suddenly short-circuited by a coil of negligible resistance and of inductance 8.0muH Calculate the maximum amplitude and the frequency of the resulting current oscillations.

Two short magnets have equal to pole strength but one is twice as long as the other. The shorter magnet is placed 20 cm in tan A position from the compass needle. The longer magnet must be placed on the other side of the magnetometer for no deflection at a distance equal to:

Paheliyan and Detective Riddles To Test Your Brain| Hindi Paheliyan | Mind Your Logic

In a hostel 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. (a) Find the probability that she reads neither Hindi nor English news papers. (b) If she reads Hindi news paper, find the probability that she reads English news paper. (c) If she reads English news paper, find the probability that she reads Hindi news paper.