Basic Math | MCQs

Explanation

A decade consists of 10 years.

It is a period of ten consecutive years.

Explanation

To find 30% of 180, you can multiply 180 by 0.3 (which is equivalent to 30%).

180 x 0.3 = 54

So, 30% of 180 is 54!

Explanation

8- 2 + 6 =?

6+6=12

Explanation

To find 25% of 80, use the following calculation:

1: Convert the percentage to a decimal:

25%=0.25

2: Multiply the decimal by 80:

0.25×80=20

Explanation

900 ÷ 3 = 300

Explanation

Given equation: 2x + 5 = 13

Subtract 5 from both sides to isolate 2x:

2x = 13 - 5

2x = 8

Now, divide by 2 to solve for x:

x = 8 / 2

x = 4

Therefore, the solution to the equation 2x + 5 = 13 is x = 4.

Explanation

30% of 50 is calculated by multiplying 50 by 30/100, which equals 15.