There are five boxes in cargo hold. The weight of the first box is 200 kg and the weight of the second box is 20% higher…

In 2011, the arithmetic mean of the annual incomes of Ramesh and Suresh was Rs. 3800. The arithmetic mean of the annual …

Total weekly emoluments of the workers of a factory is Rs. 1534. Average weekly emolument of a worker is Rs. 118. The nu…

40% of the employees in a factory are workers. All the remaining employees are executives. The annual income of each wor…

A man started his journey from Lucknow to Kolkata, which is 200 km, at the speed of 40 kmph then he went to Banglore whi…

The frequency distribution data is given below. If the average age is 17 years, the value of m is<br> <table cl…

The average weight of 47 balls is 4 g. if the weight of the bag (in which the balls are kept) be included; the calculate…

The average of the first nine prime numbers is-