Recent questions in Olympiad-Math

A teacher measures the heights of 13 students in her class as follows (in centimetres) 146 , 115 , 134 , 118 , 126 , 158 , 151 , 134 , 110 , 147 , 144 , 154 , 160,What is the median of their heights?

asked Oct 14, 2015 by pady_1

0 answers

While doing the science experiment in the physics lab, Kareem had to take 4 measurements of the temperature and write the average of those as an answer. If the measurements of the temperature is -3, -3, -2, -4, what is the final answer of his experiment ?

asked Oct 14, 2015 by pady_1

0 answers

A coin is tossed 100 times with the following frequencies :Head : 49, Tail: 51, When a coin is tossed at random, what is the probability of getting head?

asked Oct 14, 2015 by pady_1

0 answers

A dice is thrown at random. Find the probability of getting an even number.

asked Oct 14, 2015 by pady_1

0 answers

A bag contains 5 red balls and 3 white balls. What is the probability that one ball drawn from the bag is white?

asked Oct 14, 2015 by pady_1

0 answers

If 75 C - 225 A = 702, and 300 A + 75 B = 1098, then what is the average of A, B and C?

asked Oct 14, 2015 by pady_1

0 answers

Find the median of the following set 19 , 22 , 21 , 10 , 14 , 15 , 15 , 22

asked Oct 14, 2015 by pady_1

0 answers

The average of any four consecutive odd integers is always

asked Oct 14, 2015 by pady_1

0 answers

In an office, the age of the employees was as follows 30 , 26 , 27 , 37 , 14 , 50 , 45 , 53 , 48 , 51 , 38 , 25 What is the average of their ages?

asked Oct 14, 2015 by pady_1

0 answers

If the probability of winning a game is 0.8, what is the probability of losing it ?

asked Oct 14, 2015 by pady_1

0 answers

A dice is thrown once. What is the probability of getting 2 ?

asked Oct 14, 2015 by pady_1

0 answers

What is the new median, when 36 is added to the data : 32, 34,36,38,40,42,44?

asked Oct 14, 2015 by pady_1

1 answer

What is the value of x if the median of given data is 18 : 15, 16, 17, x + 2, 19, 20, 21?

asked Oct 14, 2015 by pady_1

1 answer

If 23 is taken out from the given data then what is the new median?20, 21,22, 23, 24, 25, 26,27

asked Oct 14, 2015 by pady_1

1 answer

Find the value of x if the mode of the following data is 7 : 5, 4, 7, 4, 7, x, 7, 4, 3,5

asked Oct 14, 2015 by pady_1

0 answers

The ages in years of 9 teachers in a school are : 23, 34, 37, 39, 41,43,45,47. find the median

asked Oct 14, 2015 by pady_1

0 answers

Find the median of first 8 even natural numbers

asked Oct 14, 2015 by pady_1

0 answers

Find the median of first 7 odd natural numbers.

asked Oct 14, 2015 by pady_1

0 answers

Find the median of the data : 41, 43, 46, 48, 49, 52, 53, 55,56

asked Oct 14, 2015 by pady_1

0 answers

Find the median : 6, 8, 9, 15, 21, 25, 28, 29

asked Oct 14, 2015 by pady_1

0 answers

The marks obtained by 6 students of a class 7th in a test are given below : 12, 15, 23,23, 19, 21. Find the median.

asked Oct 14, 2015 by pady_1

0 answers

Ria's age is twice that of Balvinder, Balvinder's age is twice that of George and George's age is twice that of Radha. If the average of the ages of Ria, Balvinder, George and Radha is 22.5 years, then what is the present age of Ria.

asked Oct 14, 2015 by pady_1

0 answers

Pradip throws a die. What is the probability that he rolls a number less than 6?

asked Oct 14, 2015 by pady_1

0 answers

Find the mean of first 8 multipliers of 7.

asked Oct 14, 2015 by pady_1

0 answers

What is the average of the 7 consecutive integers starting at 21?

asked Oct 14, 2015 by pady_1

1 answer

From a deck of cards, Sara withdraws a card at random. What is the probability that the card is a King?

asked Oct 14, 2015 by pady_1

0 answers

If there are n numbers of which one is(1-\large\frac{1}{n^5}) and all the others are 1's, then by how much is the arithmetic mean of these numbers less than 1.

asked Oct 14, 2015 by pady_1

0 answers

A teacher measures the heights of 11 students in her class as follows (in centimetres) 124 , 138 , 111 , 118 , 145 , 155 , 154 , 143 , 131 , 144 , 129 What is the median of their heights?

asked Oct 14, 2015 by pady_1

0 answers

If a die is thrown, what is the probability of getting an odd number?

asked Oct 14, 2015 by pady_1

1 answer

Shyam got an average of 71 in 3 tests. What does he need to score on the next test to get his average up to 73?

asked Oct 14, 2015 by pady_1

0 answers

Sachin throws a die. What is the probability that he rolls a number less than 3?

asked Oct 14, 2015 by pady_1

0 answers

Priyanka measures the heights of 9 of her friends as follows (in centimetres) 130 , 116 , 123 , 119 , 146.7 , 133 , 140 , 150 , 133 What is the average of their heights?

asked Oct 14, 2015 by pady_1

0 answers

Archana's age is twice that of Alisha, Alisha's age is twice that of Sara and Sara's age is twice that of Balvinder. If the average of the ages of Archana, Alisha, Sara and Balvinder is 30 years, then what is the present age of Sara.

asked Oct 14, 2015 by pady_1

0 answers

The average of any four consecutive odd integers is always

asked Oct 14, 2015 by pady_1

0 answers

In an office, the age of the employees was as follows 27 , 30 , 54 , 51 , 40 , 50 , 26 , 51 , 38 , 50 , 34 What is the average of their ages?

asked Oct 14, 2015 by pady_1

0 answers

Sneha throws a die. What is the probability that she rolls a number more than 1?

asked Oct 14, 2015 by pady_1

0 answers

Find the mean of all the internal angles in a pentagon.

asked Oct 14, 2015 by pady_1

0 answers

From a deck of cards, Raj withdraws a card at random. What is the probability that the card is a red King?

asked Oct 14, 2015 by pady_1

0 answers

From a deck of cards, Tina withdraws a card at random. What is the probability that the card is red facecard (one of king, queen, jack )?

asked Oct 14, 2015 by pady_1

0 answers

The marks obtained by 6 students of a class 7th in a test are given below : 12, 15, 23,23, 19, 21. Find the median?

asked Oct 14, 2015 by pady_1

1 answer

What is the mean of first 5 multiples of 2 ?

asked Oct 14, 2015 by pady_1

0 answers

What is the class mark of the class 30 - 40 ?

asked Oct 14, 2015 by pady_1

1 answer

If the mean of three observations, x + 2, x + 4, x + 6, is 15. Find x

asked Oct 14, 2015 by pady_1

0 answers

The mean of 5 numbers is 28. If one number is excluded, their mean is 26. Find the excluded number

asked Oct 14, 2015 by pady_1

1 answer

The mean of 4, 3, x + 3, 9, 10 is 7. Find the value of x ?

asked Oct 14, 2015 by pady_1

0 answers

The mean of 8, 4, 5, x and 10 is 8. Find the value of x?

asked Oct 14, 2015 by pady_1

1 answer

The mean of five numbers is 18. If one numbers is excluded, their mean is 16. What is the excluded number?

asked Oct 14, 2015 by pady_1

0 answers

Find the mean of 8, 12,5,6,10,7

asked Oct 14, 2015 by pady_1

0 answers

The average runs scored by a cricketer in 6 innings is 55, find his total score?

asked Oct 14, 2015 by pady_1

0 answers

What is the range of the following data : 46, 63, 25, 23,39.42,21,47,68?

asked Oct 14, 2015 by pady_1

1 answer

Ask Questions, Get Answers