Pinky bought 25 books at the rate of ₹14 each, 40 pens at the rate of ₹7 each and 15 pencils at the rate of ₹6 each. Calculate the average price (in ₹) of all the stationery goods.
Find the mode for the following data of student ages:
16, 17, 15, 17, 16, 15, 14, 14, 13, 17, 13, 12, 12, 16, 10, 14, 17, 10, 11.
Raghav's average earning per month in the first three months of a year was ₹45,000. In April, his earning was % more than the average earning in the first three months. If his average earning per month for the whole year is ₹45,300, then what will be Raghav's average earning (in) per month from May to December?
The monthly wages of 6 employees in a company are ₹5,000, ₹6,000, ₹8,000, ₹8,500, ₹9,300, and ₹9,500. Find the median of their wages.
For a given data, if mean and mode are 42 and 60, respectively, then find the median of the data using empirical
relation.
In Munnar, a travel company has three 4-seater cars and two 8-seater maxi cabs. The rate of each passenger for a round trip in a car is 225 and for a round trip in a maxi cab is ₹20. The average occupancy of the seats is 100%. What is the average earning of each vehicle for one round trip?
If the average of 5 consecutive even numbers is 10, then find the number at the centre when these five numbers are arranged in ascending order.
The average of thirteen consecutive integers is 36. If two times the smallest of these 13 integers is added to the largest of these 13 integers, what will be the sum obtained?
For a grouped data, if , is the class mark and is the corresponding frequency, then by direct method, mean x is
given by:
A group of people contains men, women and children. If 40% of them are men, 35% are women and rest are children, and their average weights are 70 kg, 60 kg and 30 kg, respectively. The average weight of the group is:
A class of 30 students appeared in a test. The average score of 12 students is 80, and that of the rest is 75. What is the average score of the class?
The mean of 36 numbers was found as 42. Later on, it was determined that a number 47 was misread as 41. Find the correct mean of the given numbers (rounded off to two decimal places).
Last year, Ranjan’s monthly salary was 34,500, and this year his monthly salary is 38,640. What is the percentage increase in Ranjan’s monthly salary this year over last year?
The average of 11 numbers arranged in an order is 41. The average of the first five numbers is 18 and that of the last five numbers is 64. What is the sixth number?
Manish's average earning per month in the first three months of a year was ₹8784. In April, his earning was 25% more than
the average earning in the first three months. If his average earning per month for the whole year is ₹99085, then what will
be Manish's average earning (in ₹) per month from May to December?
The average weight of 8 men is decreased by 3 kg when one of them whose weight is 56 kg is replaced by a new man. What
is the weight of the new man?
The average of eight numbers is 20. The average of five of these numbers is 20. The average of the remaining three numbers
is
Lalit's average earning per month in the first three months of a year was ₹4080. In April, his earning was 75% more than the
average earning in the first three months. If his average earning per month for the whole year is ₹66405, then what will be
Lalit's average earning (in ₹) per month from May to December?
The average of eight numbers is 20. The average of five of these numbers is 15. The average of the remaining three numbers
is
Average age of P and Q is 24 years. Average age of P, Q and R is 22 years. Find the sum of their ages in last year.
The average age of 4 persons is 42 years. If their ages are in the ratio of 1: 3: 4: 6 respectively, find out the difference between the ages of the eldest and the youngest person.
The average monthly income of the father and mother is Rs. 5,000. The average monthly income of the mother and her son is Rs. 6,000. The average monthly income of the father and his son is Rs. 10,000. Find the monthly income (in Rs.) of the father.
College P has 180 students scoring average marks of 88 and college Q has 320 students scoring average marks of 72. Find the average marks of both the colleges together.
20 students of a college went to a hotel. 19 of them spent Rs. 175 each on their meal and the 20th student spent Rs. 19 more than the average of all the 20. Find the total money spent by them.
In a match, average of runs scored by 7 players is 63. If the runs scored by 6 players are 130, 42, 24, 53, 45 and 54, then how many runs did the 7th player scored?
Average of 8 numbers is 44. The average of first three numbers is 50 and the average of next two numbers is 52. If the sixth number is 6 and 8 less than seventh and eighth number respectively, then what is the value of eighth number?