 
<translate> Na farko sami jimlar adadin ƙusa mai layi: ƙusa 20 - ƙusa 6 - ƙusa 8 = ƙusa 6. Bayan haka, sai ka raba adadin shuɗin ƙusa da adadin ƙusa duka kuma ka ninka da kashi 100 domin ka samu kashi: 8 shuɗin ƙusa / 20 duka ƙusa * 100% = 40%. Sai ka raba adadin ƙusoshin da aka yi wa layi da adadin ƙusoshin gaba ɗaya kuma ka ninka da kashi 100 domin ka samu kashi: 6 ƙusoshin da aka yi wa layi / 20 ƙusoshin gaba ɗaya * 100% = 30%. Sa'an nan kuma rage kashi na kusoshi masu layi daga kashi na blue kusoshi don samun bambanci: 40% - 30% = 10%. Amsar ita ce: 10. <eng> First find the total number of striped nails: 20 nails - 6 nails - 8 nails = 6 nails. Then divide the number of blue nails by the number of total nails and multiply by 100% to express the answer as a percentage: 8 blue nails / 20 total nails * 100% = 40%. Then divide the number of striped nails by the number of total nails and multiply by 100% to express the answer as a percentage: 6 striped nails / 20 total nails * 100% = 30%. Then subtract the percentage of striped nails from the percentage of blue nails to find the difference: 40% - 30% = 10%.
The answer: 10. 