Question

(ix) If out of 10 balls in a bag 6 are black and 4 are white, then the percentage of
black ball is :
(a)
40%
(b)
60%
(c)
4%
(d) 6%​

Answer 1

Answer:

$\frac{6}{10} \times 100 = 60\%$

Answer 2

✪ᴀɴsᴡᴇʀ✪

• Percentage of black ball is 60%.

★ᴇxᴘʟᴀɪɴᴀᴛɪᴏɴ★

Percentage of black ball

$= \frac{No.\:of\:black\:ball} {Total\:no.\:of\:ball} \times 100$

$= \frac{6} {10} \times 100$

$= 6 \times 10$

$= 60%$