Question
Two friend Himanshu and Naman appeared in an exam. The
probability that Himanshu will Qualify the exam is 1/20 and Naman will Qualify the exam is 1/10. The probability that both will qualify the exam is 1/50.Find the probability that only one of them qualify the exam.Solution
Probability of Himanshu =1/20 = 5% Probability of Naman =1/10 =10% Probability of both = 1/50 =2% Probability that only one of them qualify the them= (8+3)/100 =11/100
How many Zeros can be formed by multiplying 10 times; 20 times; 30 times; 40 times; ...............times; 2000?
If (2/3)rd of ‘x’ exceeds (2/5)th of (x + 5) by 6, then find the value of ‘x’.
- Between what values of x is the expression 18x - 3x² - 45 positive?
Find the third proportion of 28 and 14.
What is the average of first 26 multiples of 2.6?
How many integer pairs (x, y) satisfy the inequality x2 + 4y2 < 100?
If x and y are the two digits of the number 115xy such that this number is divisible by 90, then the value of x + y is:
Aakriti’s present age is 5 times of Poonam’s age. The sum of the present ages of Aakriti, Poonam and Aakriti’s father is 86 yrs. Aakriti’s fathe...
Find the range of the given data:
25, 43, 67, 91, 38, 57, 12, 74, 29
What is the average of first 34 multiples of 3.4?
Relevant for Exams:
