10th Class Math Periodical Exam

A card is drawn from a deck of 52 cards. The event E is that card is not an ace of hearts. The number of outcomes favourable to E is

When a die is thrown, the probability of getting an odd number less than 3 is

A single letter is selected at random from the word PROBABILITY. The probability that the selected letter is a vowel is

There are 1000 sealed envelopes in a box. 10 of them contain a cash prize of Rs 100 each, 100 of them contain a cash prize of Rs 50 each and 200 of them contain a cash prize of Rs 10 each and rest do not contain any cash prize. If they are well-shuffled and an envelope is picked up, then the probability that it contains no cash prize is

In a frequency distribution, the mid-value of a class is 10 and the width of the class is 6. The lower limit of the class is

A set of numbers consists of three 4's, five 5's, six 6's, eight 8's and seven 10's. The mode of this set of numbers is

Consider the data CI 65-85, 85-105, 105-125, 125-145, 145-165, 165-185, 185-205. The difference of the upper limit of the median class and the lower limit of the modal class is

The sum of exponents of prime factors in the prime-factorisation of 196 is

What is the probability of getting at most 3 heads?

What is the probability of getting at least 3 heads?

How often will there be trains on all three lines departing the train station at the same time?

What is the probability that the card drawn is a black king?

What is the mode of the given data?

What is the value of x if the mean of the 50 observations is 132?

How many maximum guests can Lavanya invite if she distributes fruits equally among all?

How many total fruits will each guest get if Lavanya adds 42 mangoes and removes 6 apples?