Explanation

True Discount (TD) = Rs. 189

Rate (R) = 16% per annum

Time (T) = 9 months = 3/4 year

Using the formula:

TD = (P x R x T) / 100

where P is the amount of the bill, we can rearrange the formula to solve for P:

P = TD x 100 / (R x T)

= 189 x 100 / (16 x 3/4)

= 189 x 100 / 12

= 1764

So, the amount of the bill is Rs. 1764.

Explanation

Step - 1: Let the side of the square be a

area (S1) = a^2

length of the diagonal is √(a^2+a^2)= a√(2)

Step - 2: Draw a square on its diagonal where the length of each side is a √(2)

Formula 

Hence S1:S2= (C) 1:2

****

ND10-12-2022

Explanation

45 percent *10000 = (45/100)*10000

= (45*10000)/100

= 450000/100 = 4500

Now we have: 45 percent of 10000 = 4500

Question: What is 45 percent of 10000?

We need to determine 45% of 10000 now and the procedure explaining it as such

Step 1: In the given case Output Value is 10000.

Step 2: Let us consider the unknown value as x.

Step 3: Consider the output value of 10000 = 100%.

Step 4: In the Same way, x = 45%.

Step 5: On dividing the pair of simple equations we got the equation as under

10000 = 100% (1).

x = 45% (2).

(10000%)/(x%) = 100/45

x%/10000% = 45/100

Step 7: Simplifying the above obtained equation further will tell what is 45% of 10000

x = 4500%

Therefore, 45% of 10000 is 4500

******

RY 31-12-2022

Explanation

To find the number of marks Umar would get out of 100, we need to calculate his percentage score and then apply it to 100 marks.

Percentage score = (45/75) x 100% = 60%

If he got 60% of 75 marks, he would get 60% of 100 marks, which is:

60% x 100 = 60

So, the correct answer is: 60

Explanation

Let the no. of days = x

12×90=30×12+(12−2+8)x

1080−360=18x

720 = 18x

x = 40 days

Explanation

 More details about this question will be shared soon

Explanation

If a ball usually sells for Rs. 120 and is sold at a 40% discount, the sale price is calculated as follows:

Discount amount = 40% × 120 = 0.40 × 120 = 48

Sale price= 120 - 48 = 72

So, the sale price of the ball is Rs. 72.

Explanation

Let x be the number whose 5% is 10.

Now, 10 = 5/100 x Y

Y = 10 x 100/5

Y = 200

Y = 200

ND18-4-2023

Explanation

We can write this as:

(x/100) × 200 = (y/100) × 250

Simplifying the equation:

2x = 2.5y

Dividing both sides by 2:

x = 1.25y

Now, dividing both sides by y:

x/y = 1.25

x/y = 5/4

So, y:x = 4:5

Explanation

Number of boys who passed = 32% of 900 = 0.32 x 900 = 288

Number of girls who passed = 38% of 1100 = 0.38 x 1100 = 418

Total number of candidates who passed = 288 + 418 = 706

Total number of candidates = 900 (boys) + 1100 (girls) = 2000

Number of candidates who failed = Total number of candidates - Number of candidates who passed = 2000 - 706 = 1294

Total percentage of candidates who failed = (Number of candidates who failed / Total number of candidates) x 100 = (1294 / 2000) x 100 = 64.7%

So, the correct answer is: 64.7%