A man purchased 7 bags of rice at the rate of  ₹ 800 each, 8 bags of rice at ₹ 1000  each and 5 bags of rice at the rate of  ₹ 1200 each. What is the average cost of one bag of rice?

The average score in Mathematics of 90 students of section A and B of class IX was 63. The number of students in A were 10 more than those in B. The average score of students in A was 30% more than that of students in B. The average score of students in B is:

The mean of 9 observations is 16. One more observation is included and the new mean becomes 17. The 10th observation is

The HCF of two numbers is 21 and their LCM is 840. If one of the numbers is 49, then the other number is:

The product of two consecutive even numbers is 168. Find the sum of the numbers?

Directions: The table given here shows the production of five types of cars by a company in the year 1989 to 1994. Study the table and answer questions.

In which year the production of cars of all types taken together was approximately equal to the average of the total production during the period?

Direction: The given Bar Graph Presents the number of different types of vehicles (in lakhs) exported by a company during 2014 and 2015.

What is the ratio of the total number of type A and c vehicles exported in 2014 to the total number of type B and E vehicles exported in 2015? 

Each exterior angle of a regular polygon measures 9°. How many sides does the polygon have?