Pema Dorji and Kesang Choden are two children in a big family. Pema Dorji has thrice as many sisters as he has brothers. Kesang Choden has two less brothers than she has sisters. How many children are there in the family?

Perma Dorji (PD) and Kesan Choden (KC) are children.

If the number of brother PD has is X, the number of sisters she has is 3X

If the number of brothers KC has is 3X, then the number of sisters she has is 3X-2

Explanation:

The total number of children (brothers and sisters) therefore are:

PDs siblings = 3X+X plus

KCs siblings = 3X2

= 3X+X +3X-2

=6x-2

Let's assume that X is 1, therefore the number of siblings equals

6(1)-2

= 4

Don't forget the PD and KC are also children.

Therefore, the total children in the family is equals to 6

Cheers!

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.