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If A and B sold red pens in pack of 10 and 7 respectively, then find the sum of number of packs of red pens sold by them.

The number of participants in painting competition is approximately what per cent of the number of participants in recitation?

Find the difference between the number of bags sold by shop A throughout the week and the number of bags sold by shop C throughout the week.

What is the ratio between numbers of automatic cars sold to manual cars sold in city B?

What is the difference ( in thousand) between the number of vehicles sold by Company O in the year 2011 and in the year 2014?

What is the ratio of the cost of flooring to that of fencing of field S?

Number of employees in company D is approximately how much percent less than the number of employees in company B?

Find the ratio of m:g.