Question

If 40/3 of a number is 90 find the number

Answer 1

Introduction:

Percent (%) means ‘out of hundred'

40% = 40 ‘out of hundred'

p% is read p ‘percent'

40% = 40/100 = 40÷100

Calculate Percentage:

Percentage is obtained my multiplying 90 by 40% x 90 = (40 ÷ 100) x 90 = (40 x 90) ÷ 100 = 3,600 ÷ 100 = 36

How do we check the result ?

If 40% × 90 = 36 => Divide 36 by 90...

...And see if we get as result: 40%

Note:

100/100 = 100 ÷ 100 = 100% = 1

Multiply a number by the fraction 100/100.

...and its value doesn't change

n/100 = n%, any number

Calculate the percent value:

36 ÷ 90 = 0.4 = 0.4 × 100/100 = (0.4×100)/100 = 40/100 = 40%

Answer:

Percentage of 40% of 90 = 36

Answer 2

Answer:

y = 6.75

Step-by-step explanation:

let the number be y

then,

(40/3) × y = 90

y = (90 × 3)/40

y = (270/40)

y = 6.75