Aline segment 42 inches long is divided into 3 portions in a ratio of 1: 2: 4.
how many inches long is the longest portion than the shortest portion?

a) 16 b) 18 c) 20 d) 22 e) none of these

Option B.

Step-by-step explanation:

It is given that A line segment 42 inches long is divided into 3 portions in a ratio of 1:2:4.

Let the length of 3 portions are x,2x and 4x respectively.

Divide both sides by 7.

The value of x is 6.

The lenght of 3 portions are  

Difference between the longest portion and the shortest portion is

Longest portion is 18 inches longer than the shortest portion

Therefore, the correct option is B.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more