Question

the average age of 12 boys is 10 years out of these the average age of 11 boys is 9 years find the age of the 12th boy​

Answer 1

Answer:

Step-by-step explanation:

The two main forms of carbohydrates are sugars (such as fructose, glucose, and lactose) and starches, which are found in foods such as starchy vegetables, grains, rice, breads, and cereals. The body breaks down (or converts) most carbohydrates into the sugar glucose, which is absorbed into the bloodstream.The two main forms of carbohydrates are sugars (such as fructose, glucose, and lactose) and starches, which are found in foods such as starchy vegetables, grains, rice, breads, and cereals. The body breaks down (or converts) most carbohydrates into the sugar glucose, which is

Answer 2

$total \: sum \: of \: ages \: of \: 12 \: boys \: \\ = 12 \times 10 \\ = 120 \\ total \: sum \: of \: ages \: of \: 11 \: boys \\ = 11 \times 9 \\ = 99 \\ age \: of \: 12th \: boy \: = 120 - 99 \\ \\ = 21$