Explanation

She spent 4/9 of her money, which means she spent (4/9)x rupees.

She has 25 rupees left, which means she has (5/9)x rupees left (since 1 - 4/9 = 5/9).

We know that (5/9)x = 25, so we can solve for x:

x = 25 x (9/5)

x = 45

So, the girl had 45 rupees initially.

She spent (4/9) x 45 = 20 rupees.

The correct answer is: 20

Explanation

x - 4 = 9

Add 4 to both sides:

x = 13

Now, let's calculate x^2 - 4:

x^2 - 4 = (13)^2 - 4

= 169 - 4

= 165

So, the correct answer is: 165

Explanation

Abdur Rehman Chughtai was a renowned Pakistani painter.

He is known for his distinctive Mughal-inspired artistic style.

He is also notable for designing Pakistan's first postage stamp in 1947.

Explanation

7589 - x = 3434

To find the value of x, we need to subtract 3434 from 7589:

7589 - 3434 = 4155

So, the correct answer is: 4155

Explanation

Series: 2, 5, 10, 17, 26, 37, 50, 64

(1 × 1) + 1 = 2

(2 × 2) + 1 = 5

(3 × 3) + 1 = 10

(4 × 4) + 1 = 17

(5 × 5) + 1 = 26

(6 × 6) + 1 = 37

(7 × 7) + 1 = 50

(8 × 8) + 1 = 65 (not 64)

Odd one: 64

Explanation

To find the speed of the car, we need to divide the distance traveled (700 km) by the time taken (3 hours 30 minutes).

First, let's convert the time from hours and minutes to just hours:

3 hours 30 minutes = 3.5 hours (converting 30 minutes to 0.5 hours)

Now, let's calculate the speed:

Speed = Distance ÷ Time = 700 km ÷ 3.5 hours = 200 km/h

So, the correct answer is:

200 km/h

Explanation

Let P, Q and R represent their respective monthly incomes. Then, we have:

P + Q = (5050 x 2) = 10100 .... (i)

Q + R = (6250 x 2) = 12500 .... (ii)

P + R = (5200 x 2) = 10400 .... (iii)

Adding (i), (ii) and (iii), we get: 2(P + Q + R) = 33000 or P + Q + R = 16500 .... (iv)

Subtracting (ii) from (iv), we get P = 4000

Therefore P's monthly income = Rs. 4000

Explanation

When you multiply two decimal numbers, you need to multiply the numbers as usual and then add the total number of decimal places in both numbers to the product.

.014 × .014 = .000196

So, the correct answer is 0.000196.

Explanation

Let the cost of 1 chair be Rs. x and the cost of 1 table be Rs. y.

From the first set of values, we get: 3x + 2y = 700 ... (i)

From the second set of values, we get: 5x + 3y = 1100 ... (ii)

Multiply equation (i) by 5: 15x + 10y = 3500 ... (iii)

Multiply equation (ii) by 3: 15x + 9y = 3300 ... (iv)

Subtract equation (iv) from equation (iii): y = 200

Substitute y = 200 in equation (i): 3x + 2(200) = 700 => 3x = 300 => x = 100

Finally, find the cost of 2 chairs and 2 tables: 2x + 2y = 2(100 + 200) = Rs. 600

Explanation

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

• Divide 3 by 3: 3 ÷ 3 = 1
• Multiply 1 by 0: 1 × 0 = 0
• Add the numbers: 1 + 1 + 2 + 0 = 4

So, the correct answer is: 4