Aptitude - Percentage - Discussion

19.70 rs. Is the write answer because.

Given:

(1) Total cost of the things purchased: Rs. 25.

The things purchased of rs. 25 includes both taxable and non-taxable things.

(2) Sales tax: 30 paise = 0.3 rs.

(3) Tax rate: 6%.

This tax rate will be applied on cost of taxable products which gives sales tax.

Solution:

Step 1: Find cost of products on which tax is applied (i.e. Taxable products).

So here, let x be the cost of products on which tax is applied.

And tax rate on x product is 0. 3.

i.e 6% of x = 0.3.

x = 5.

Rs. 5 is only the cost of taxable product, on which sales tax is going to be added.

Your doubt: why sales tax (ie. 0.3) is added with cost of taxable product (ie. 5).

Answer to your doubt:

Question your self: On what sales tax is applied.

Ans: Products that has tax on them.

So, we find the cost of products that has tax on them and add it to sales tax.

i.e. 5+0.3 = 5.3.

Step 2: Find Non-taxable products.

Cost of products = (Cost of taxable products + Cost of non-taxable products).

25= 5.3 + cost of non-taxable products.

Cost of non-taxable products = 25-5.3 = 19.70 rs.

Really I can't get any thing please any one explain me clearly.

Cost of stationary item is Rs. 25 which is included tax 30 paise.

So cost of item without tax is 25-0.30 = 24.70.

Now according to question let cost of item in which applying tax be X.

So 6% of X = 30/100 (because to convert paise into rupee divide by 100).

= 6/100*X = 30/100.

X = 5 rupees.

Now, cost of item with tax free = 24.70-5 = 19.70.

There is an also another way.

1) The bought thing of Rs. 25.

2) 30 paise (0.030).

So subtract it 25-(0.030) = 24.7.

Then 30/6*100 = 30/6 = 5.

Subtract 24.7-5 = 19.7.

So here you get 19.7.

@Scarlet:

2) A container contains 30 litres of alcohol. From this container 5 litres of liquid is taken out and the container is completely filled by water. Next time 6 litres of mixture was taken out and the container was completely filled with water. Approx how much percent alcohol is left behind in the container?

5 litres removed from 30 liters.

>>> alcohol removed = 5(25/30).

= 4.16 liters.

>>> alcohol present = 25 - 4.16.

= 20.84 liters.

Now 6 liters removed from 30 liters.

>>> alcohol removed = 6 (20.84/30).

= 4.168 liters.

>>> alcohol present = 20.84 - 4.168.

= 16.67 liters.

Now we are asked % of alcohol present:

= 16.67 of 30.

= 16.67/30 * 100 = 55.56 %.

Tax = 6%.

There for tax = 6% of 24.7 (excluding 30 ps).

That is = 1. 482.

Therefore tax free = 25 - (1.482 + 0.3) = 23.218 know?

Simple:

X be taxed items.
Y be non-taxed items.

Rs.25
Tax 30 Paise.
Tax 6%.

(6/100)X = (30/100).
X = 5.

Y = (25-(X+0.30)).
Y = 19.70.

In a class 60% of students passed in Telugu, 50% 0f students passed in English. Then if every student Passed in either Telugu or English or both the subjects. Then what is the percentage of students passed in both the subjects?

Can anyone help me to solve this problem?

Please explain why 30 paise is deducted?

Why X is taken? It is already given Rs. 25, out of which 30 paise went on sales tax.