(2 marks) Ten persons will stand in a line. 3 males and 7 females. In how many ways they may be arranged according to gender?​

The correct answer is -20y

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.

There should only be 1 solution