Question

a) Check if 35, 7, 60, 12 are in proportion

Answer 1

Answer:

the product of extreme = product of mean

Answer 2

Answer :-

Yes, They are in proportion.

Proof :-

Simple Method :

Given Terms,

• 35 : 7 :: 60 : 12.

To Prove,

• They are in proportion.

Solution,

We know that,

Product of Extremes = Products of Means.

Here,

35 and 12 are Extremes.

7 and 60 are Means.

So, Let's Solve.

➞ 35 × 12 = 60 × 7.

➞ 420 = 420.

LHS = RHS.

Hence, Proved.

Alternative Method :

As they are in ratio, we can write them in fraction,

➞ 35/7 = 60/12.

➞ 5 = 5.

LHS = RHS.

Hence, Proved.