Question

. 40% of a number is 800 then find the number?
A)800
B)8000
C)2000
D)200 ​

Answer 1

Answer:

2000

Step-by-step explanation:

40% of a no. is 800

=40% of x = 800

= 100 × 800

40

= 2000

Answer 2

Answer:

• C) 2000 is the required number.

Step-by-step explanation:

We know:

• Percentage, % = 1/100 = 0.01

Given:

• 40% of a number is 800.

To Find:

• The certain number.

Let us assume:

• The certain number be x.

Method 1:

According to the question.

↠ 40% of x = 800

↠ 40 × 0.01 × x = 800

↠ 0.4x = 800

↠ x = 800/0.4

↠ x = 2000

Method 2:

↣ x : 100% = 800 : 40%

↣ x/100% = 800/40%

↣ x = (800 × 100%)/40%

↣ x = 80000%/40%

↣ x = 2000

Hence,

• The certain number is 2000.