M L Aggarwal Solutions for Exercise 2: Multiple Choice Questions

A bag contains $3$ red balls, $5$  white balls and $7$ black balls. The probability that a ball drawn from the bag at random will be neither red nor black is

One ticket is drawn at random from a bag containing tickets numbered $1$ to $40$. The probability that the selected ticket has a number which is a multiple of $5$ is
 

If a number is randomly chosen from the numbers $1, 2, 3, 4, ....., 25$; the probability of the number being prime is 

If a (fair) coin is tossed twice, then the probability of getting two heads is
 

A box contains $90$  cards numbered $1$ to $90$ . If one card is drawn from the box at random, then the probability that the number on the card is a perfect square is
 

If two coins are tossed simultaneously, then the probability of getting atleast one head is
 

Lakshmi tosses two coins simultaneously. The probability that she gets atmost one head is
 

The probability of getting a bad egg in a lot of $400$ eggs is $0.035$ The number of bad eggs in the lot is