Question

65 of a number is 21 less than4/5
of the number then the number is​

Answer 1

Answer:

140

Step-by-step explanation:

Let number be x

According to question,

(65/100)x=(4/5)x-21

Solving this,

x=140

Answer 2

Answer:

140

Step-by-step explanation:

Let the Number be: x

65% of x = 65x/100

→ 13x/20

4/5 of x = 4x/5

(13x/20) + 21 = 4x/5

→ {Transposing 21 to RHS and 4x/5 to LHS}

→ 13x/20-4x/5 = -21

→ 13x/20-16x/20 = -21

→ -3x/20 = -21

→ {Transposing -3/20 to RHS}

→ x = -21(-20/3)

→ x = 140

Checking the Conditions...

65% of x = 65% of 140

= 65/100×140

= 91

4/5 of x = 4/5 × 140

= 112

Difference = 112 - 91

= 21

Given Difference = 21

21 = 21

{

Condition Satisfied...}

Hence, x = 140