e problem. e re was 24) discounted 15%. What was the sale price of a double roll

Question

e problem. e re was 24) discounted 15%. What was the sale price of a double roll of wallpaper? 5) In Jameel's state, the sales tax rate is 1.75% for the city and 5% for the state. Find the total amount paid for 6 DVD players at $149 each. 6) The earth, Jupiter, Saturn, and Neptune all revolve around the sun. The earth takes 1 year, 26) Jupiter approximately 12 years, Saturn approximately 30 years, and Neptune approximately 165 years to make a complete revolution. How often will Jupiter, Saturn, and Neptune appear in the same direction in the night sky as seen from earth? Aviva has a total of 61 coins, all of which are either dimes or nickels. The total value of the coins is $4.95. Find the number of each type of coin.

Explanation / Answer

Question:24

Regualar price of wallpaper ->32$

discount - 15%

selling price -> Reuglar price - discount price

discount price ----> 32*(15/100)--->4.8$

so Reuglar price---> 32-4.8-------> 27.2

Question 25

6 dvd players at 149$ each ->6*194------->894$

taxes city --->1.75%------->894*(1.75/100)------>15.645$

taxes state ---->5%----------->894*(5/100)---------->44.7$

so total -----> 894+15.645+44.7---->954.345$

Question26

Earth 1year, Jupiter 12 years , saturn 30 years ,Neputune 165 years

In same direction to observe from earth they sould appear like they are on single line when this will happen is

we need to see the least common multiple of given numbers....so that they will complete their revolutions.

LCM(1,12,30,165)------>660 years

so for every 660 years they will be on same line so that we can watch them in same direction

Question 27

Total 61 coins

total value of 61 coins 4.95$

with this information we can not solve individual number of coins

we need to have atleast one coin price of any type ...or some other informtion..

So Data insufficiency.

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