Explanation

To find the value-added tax (VAT), we need to calculate the tax paid on purchase and tax charged on sale, then find the difference.

Purchase price = Rs. 6890

Tax paid on purchase = 4% of 6890

= 0.04 × 6890

= Rs. 275.6

Sale price = Rs. 7900

Tax charged on sale = 6% of 7900

= 0.06 × 7900

= Rs. 474

Value-added tax (VAT) = Tax charged on sale - Tax paid on purchase

= 474 - 275.6

= Rs. 198.4

Explanation

Selling price (SP) = Rs. 40.00

Profit percentage = 15%

Cost price (CP) = SP / (1 + 15/100)

= 40 / 1.15

= Rs. 34.78

To earn a 20% profit:

New selling price (SP) = CP * (1 + 20/100)

= 34.78 * 1.20

= Rs. 41.74

The correct answer is 41.74.

Explanation

After 5 mins ..... 3 persons will get the rumor

After 10 mins .... 3x2 + 3 = 9 

 persons will get after 15 = 9x2 + 9 =27 

after 20 mins..... 27 x2 + 27 = 81 

Explanation

Use the formula:

% decrease = (increase ÷ (100 + increase)) × 100

= (25 ÷ 125) × 100 = 20%

So, to keep the total expenditure the same, consumption must decrease by 20%.

Explanation

Cost Price (CP) = Rs. 950

Selling Price (SP) = Rs. 1100

Profit = SP - CP = 1100 - 950 = 150

Profit % = (Profit / CP) × 100

= (150 / 950) × 100

= 15.789%

≈ 15.8%

Explanation

To find the percentage discount:

Marked price = Rs. 80

Sale price = Rs. 72

Discount = Marked price - Sale price

Discount = 80 - 72

Discount = 8

Percentage discount = (Discount / Marked price) × 100

Percentage discount = (8 / 80) × 100

Percentage discount = 10%

Explanation

Let's assume the cost of the bike is x. Then, the cost of the car is 400% greater than the cost of the bike, which means the cost of the car is x + 400% of x = x + 4x = 5x.

The total cost of 5 cars and 10 bikes is:

5(5x) + 10x = 25x + 10x = 35x

The increase in cost is:

5 cars: 15% of 5(5x) = 0.15(25x) = 3.75x

10 bikes: 20% of 10x = 0.20(10x) = 2x

Total increase = 3.75x + 2x = 5.75x

The percentage increase is:

(5.75x / 35x) × 100 = (575 / 3500) × 100 = 16 3/7%

Explanation

19625 is the correct answer

80 % of total amount = 78500 ,1% of total amount = 78500/80 =981.25 ,100 % ( total amount) = 98125 ,20 % discount = 100% - 80% = 98125-78500= 19625

Explanation

=60. percent *70 

=(60.:100)*70 

=(60.*70):100

=4200:100 = 42

Now we have: 60. percent of 70 = 42

SH18-8-2023

Explanation

Increase = 710 - 600 = 110

Percentage increase = (Increase / Original price) * 100

= (110 / 600) * 100

= 0.1833 * 100

= 18.33%