Question

Карандаш стоит 3 рубля а ручка в 5 раз дороже. Сколько стоит ручка?Сколько денег надо заплатить за обе вещи.

Answer 1

Calculation of the Pen Price

To calculate the price of the pen, we need to determine the price ratio between the pen and the pencil. We are given that the pencil costs 3 rubles and the pen is 5 times more expensive.

Let's denote the price of the pen as 'x'. According to the given information, we can set up the following equation:

5 * 3 = x

Simplifying the equation, we have:

15 = x

Therefore, the pen costs 15 rubles.

Total Cost of the Pen and Pencil

To calculate the total cost of both the pen and the pencil, we simply add their individual prices together.

The pencil costs 3 rubles and the pen costs 15 rubles. Adding these two amounts, we get:

3 + 15 = 18 rubles

Therefore, the total cost of the pen and pencil is 18 rubles.

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