Reena goes to a shop to buy a radio costing 2568. the rate of sales tax is 7% and the final value is rounded off to the next higher integer .she tells the shopkeeper to reduce the price of the radio so that she has to pay 2568 inclusive of sales tax.find the reduction in price of radio .
a.180
b.210
c.168
d. none of these

Question

mathmath333 · Answer

@freckles

loser66 · Answer

Let x is the price of the radio, then the cost she has to pay is x+7%x = 2568, solve for x, then take 2568 -x is the reduction in price of radio.

mathmath333 · Answer

by ur process answer is 168 
168 is not the answer in book

it is given 180
@Loser66

mathmath333 · Answer

the question is modified it has the sentence added
"the final value is rounded off to the next higher integer"

in the previous question the sentence was not given

loser66 · Answer

oh, I got it. 
Now, redo

loser66 · Answer

if the cost is 2568, and the tax is 7% of the cost, then the tax is 179.76 = 180 , 
So, if she doesn't have a deal, she must pay 2568 + 180. But she has a big deal, so that she doesn't have to pay 180 for tax. That is what she get from the reduction.

loser66 · Answer

And the trap is on the question, not the number.

mathmath333 · Answer

thnks