An ailing father in his will left 25% of his total money to his daughter and half of this amount to his son. He left 1/5th of total money to his brother. He left 500 Rupees to charity and rest to his wife. How much money did the son get?​

19

step-by-step explanation:

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p