Explanation

Explanation

Each pie has 10 slices and feeds 5 people, so:

- 1 person needs 10 ÷ 5 = 2 slices.

For 200 people:

- 200 × 2 = 400 slices.

Explanation

We are solving:

(Reversed number) - (Original number) = 18

Let the original two-digit number be 10x + y  

Reversed = 10y + x

So:  

(10y + x) - (10x + y) = 18  

→ 9y - 9x = 18  

→ y - x = 2

Now we find how many two-digit numbers satisfy:  

Units digit = Tens digit + 2

Possible values for x (tens digit): 1 to 7  

Since y = x + 2 must still be a digit (i.e., ≤ 9)

Let’s list them:

- x = 1 → y = 3 → 13  

- x = 2 → y = 4 → 24  

- x = 3 → y = 5 → 35  

- x = 4 → y = 6 → 46  

- x = 5 → y = 7 → 57  

- x = 6 → y = 8 → 68  

- x = 7 → y = 9 → 79  

That's 7 total, including 13.

But your question was:  

"How many *other two-digit numbers increase by 18 when reversed?"*

So, exclude 13 itself.

Answer: 6 other numbers.  

Explanation

To find the average of 30, 40, and 50:

Step 1: Add the numbers:  

30 + 40 + 50 = 120

Step 2: Divide the sum by the number of values:  

120 ÷ 3 = 40

Explanation

Total apple = 8

More parched = 3 

8+3 = 11

Explanation

Given:

Selling Price (SP₁) = Rs. 18,700

Loss = 15%

So, Cost Price (CP) = SP1 × 100/100-15 = 18,700×100 = 22,000

To gain 15%,

Now Selling Price (SP2) = CP × 115/100 = 22,000 × 1.15 = 25,300

Explanation

To evaluate this expression, we need to follow the order of operations (PEMDAS):

Calculate 25% of 30%: 0.25 x 0.30 = 0.075

Calculate 0.075 as a percentage of 45%: 0.075 x 0.45 = 0.03375

So, the correct answer is: 0.03375

Explanation

To find the average, we need to first convert each fraction to a decimal:

 5/6 = 0.83

 4/3 = 1.33

 3/4 = 0.75

Then, add the decimals and divide by the number of values:

 0.83 + 1.33 + 0.75 = 2.91

 2.91 ÷ 3 = 0.97

Now, convert the average back to a fraction:

 0.97 ≈ 35/36

Explanation

To determine the fraction of boys in the history class when there are 12 boys and 18 girls,

we can follow these steps:

1. Calculate the total number of students in the class:

Total number of students = 12 boys + 18 girls = 30 students

2. Find the fraction of boys in the class:

Fraction of boys = Number of boys / Total number of students

= 12 boys / 30 students

= 2/5

Explanation

To find how many times digit 3 appears from 1 to 100, count how often it appears in:

1. Units place:

Numbers with 3 in units place:  

3, 13, 23, 33, 43, 53, 63, 73, 83, 93 → 10 times

2. Tens place:

Numbers with 3 in tens place:  

30–39 → 10 times

3. Total:  

10 (units) + 10 (tens) = 20 times

SH18-8-2023