Explanation

Let's denote the ages of A, B, and C as a, b, and c respectively.

Given: a + b = 12 + b + c

Simplifying: a = 12 + c

So, A is 12 years older than C.

Explanation

Market price = x

Price after 5% increase = x + 0.05x = 1.05x

Sales tax = 12% of x = 0.12x

Total price paid by customer = 1.05x + 0.12x = 1.17x

Given that the total price paid is Rs. 4680:

1.17x = 4680

x = 4680 / 1.17

x = 4000

Explanation

Loss = Cost price of 5 balls

Loss = 720 - (Selling price of 17 balls)

Loss = Cost price of 17 balls - Selling price of 17 balls

Cost price of 17 balls = Selling price of 17 balls + Loss

= 720 + (Cost price of 5 balls)

Cost price of 1 ball = 60

Explanation

The pattern of the number series appears to be an increase of 5, 4, 9, 13, ... , which suggests an increase of 4, then 9, then 13, and so on.

Therefore, the next increase would be 15, which adds up to 57.

Here's the completed series:

4, 9, 13, 22, 35, 57

Explanation

Let's solve for x:

6 + 5x = 30 - x

Add x to both sides:

6 + 6x = 30

Subtract 6 from both sides:

6x = 24

Divide both sides by 6:

x = 24/6

x = 4

So, the correct answer is 4.

Explanation

b^3/B^2

= b^(3-2)

= b^1 = 1

The correct answer is 1.

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.

Last update 0n 21-07-2026 by NA

Explanation

Let's say the number of girls is G and the number of boys is B.

3/4G = 1/2B

Given that the total number of pupils is 1420:

G + B = 1420

Solving the equations, we get B = 852.

The correct answer is 852.

Explanation

(9 + 43 - 4) = 48

48 ÷ 24 = 2

2 - 2 = 0

So, the correct answer is 0.

Explanation

8 cars / 18 minutes = x cars / 180 minutes (3 hours)

x = (8 * 180) / 18

x = 80

So, the correct answer is 80.