Question

红红、兰兰、军军、强强4人今年年龄和是44岁,红红8岁时,兰兰4岁,红红10岁时,强强年龄是军军的3倍,军军现在几岁?

Answer 1

红红-兰兰=8-4=4岁；设军军现在x岁；红红现在y岁,则有：3(x-(y-10))+y-10=44-y-(y-4)-x;3x-3(y-10)+y-10=48-2y-x;4x+20-2y=48-2y;4x=24;x=6;所以军军现在6岁；您好,很高兴为您解答,skyhunter002为您答疑解惑如果本题...