Answer: An article was sold at a 20% discount, at Rs. 400. What was its marked price?
Let M denotes the required marked price of the given article.
Hence from above data we get following relation,
(1 - 20/100)*M = 400
or (4/5)*M = 400
or M = (5/4)*400 = 500 (Rs) [Ans]
Step-by-step explanation:
Answer:
y=3x^2 -15x-42
Step-by-step explanation:
<span>A factory produced 150 tons of steel in one year. the next year, the output increased to 180 tons. Then,The percentage increase = (Final -initial) /initial *100 = (180-150)*100/150 = 20% Thus, the net percentage increase in the output is 20%</span>
