Explanation

Let  3x = 4y  = 5z =k

x = k/3 ,y =k/4 ,z =k/5

x : y : z = k/3 : k/4 : k/5

x : y : z =  20 :15 :12

Sh1-9-2023

Explanation

Sh1-9-2023

Explanation

In given ratio 3 : 4

3 is antecedent 

4 is consequent.

Explanation

40/20 = 2 

60/20 = 3

The 40:60 ratio simplified is 2:3 or 2/3 

Explanation

flag Length 40 Cm &  Width 60 cm Ratio 3:2

         60 : 40

          6  :  4

           3  :  2

Explanation

Enlarge ratio = 7/5 

new length = 5*7/5=7 cm 

New width = 7*7/5=49/5=9.8 cm 

Explanation

Let the numbers be 3x, 5x

3x+4 / 5x+4 = 2/3

​9x+12=10x+8

x=4

∴ the number are 3 x 4 , 5 x 4

=12,20

Explanation

18: 54:: 54: c

18c = 54 x 54

c = 54 x 3

= 162

Explanation

A ladder slides 12cm in 3 minutes.  it will slide 48cm in 12 minutes 

Sh6-8-2023

Explanation

A firm announces a total of 63 posts. If the ratio of ordinary to officer staff must be kept as 6:3 , how many posts are there for the officers 

Post=63

ordinary: Office

     6      :    3

Sum of ratio = 6+3 =9

officer post =3/9*27

                   =21

Sh6-8-2023