12 lessons,

1h 48m

Enroll

21

✕Download

Arka Roy

“Star Educator” in UNACADEMY || Plus Educator || Subscribe on Unacademy Plus by using referral code "royarka1990-4337"

U

Unacademy user

Vinit kumar

2 years ago

please make video on how votes of mp mla are decided

0

Reply

Ratio and Proportion made easy Lesson 6

Properties of proportion If 4 quantities are in proportion then many other proportions may be deduced using the properties of fraction.

Properties of proportion Property 1:Invertendo b d if a = c then-=- Example: 2-hence 5 = 4

Properties of proportion Property 2: Alternando if a = then a = b Example: hence = 6

Properties of proportion Property 3: Componendo If a = c then a+b- c+d b d Example 2+3 4+6 hence 3 6

Properties of proportion Property 4 Dividendo if a = then abb =- Example: hence 3 4-6 3 6

Properties of proportion Property 5: Componendo and Dividendo a If C a -b c-d Example: 2+3 4+6 hence, 2-3 4-6

Thank You Arka Roy