Question

3. 1/2 of a ship's crew are deck officers, 1/4 are engineers and stewards, and the rest are sailors, if there are 48crew members in all how many sailors are on board the ship.
plz say fast....​

Answer 1

Given:

1/2 of a ship's crew are deck officers, 1/4 are engineers and stewards, and the rest are sailors.

To find:

How many sailors are on board the ship.

Solution:

From given, we have,

1/2 of a ship's crew are deck officers, 1/4 are engineers and stewards, and the rest are sailors.

Let "x" be the fraction of sailors of a ship's crew.

⇒ 1 = 1/2 + 1/4 + x

1 = 3/4 + x

x = 1 - 3/4

∴ x = 1/4

Therefore, there are 1/4 of a ship's crew are sailors.

Given that, there are 48 crew members.

Hence, the number of sailors on board the ship is given by,

⇒ 48 × 1/4 = 12

Therefore, there are 12 sailors on board the ship.