Operations on Real Numbers

1) If Dola Has a Mental Age of 35 Years and Chronological Age of 25 Years, Then What Will Be Her Intelligence Quotient (IQ)?

Also, Classify Her Intelligence Quotient (IQ).

Answer 1:

Part 1:

Here, the mental age is 35 years
And chronological age = 25 years
The formula to calculate the Intelligence Quotient (IQ) is as follows:

IQ = MA/CA*100
IQ = 35/25*100

=35*4
=140

The Intelligence Quotient (IQ) of Dola is 140.

Part 2:

Dola's IQ belongs in the range of 130-144.
So, the intelligence of Dola is gifted or very advanced.

2) Two Friends Puja and Raja Have the Same Intelligence Quotient, 120.

The Chronological Age of Puja Was 25 Years, and That of Raja Was 20 Years.
Find the Mental Age of Both Puja and Raja.
Then Compare Their Mental Age.

Answer 2:

Part 2:

Here, the Intelligence Quotient of Puja = 120
And chronological age of Puja is 25 years
The formula to calculate the Intelligence Quotient (IQ) is as follows

IQ = MA/CA*100
Then for mental age
MA = CA*IQ/100

MA = 25*120/100

= 3000/100

=30

So, the mental age of Puja is 30 years.
Here, the Intelligence Quotient of Raja is 120
and the chronological age of Puja is 20 years.

Part 2:

The formula to calculate the Intelligence Quotient (IQ) is as follows:

IQ = MA/CA*100

Then for mental age

MA = CA*IQ/100

MA = 25*120/100

= 2400/100

=24

So, his mental age is 24 years.
So, Puja's mental age is higher than Raja's mental age.

3) The Mental Age and Intelligence Quotient (IQ) Riju Were 23 Years and 115. His Brother Benu Has a Mental Age of 25 Years, and His Intelligence Quotient (IQ) Is 125. Then Find the Chronological Age of Each Brother.

Part 1:

Here, the Intelligence Quotient of Riju = 115
And mental age of Riju = 23 years
The formula to calculate the Intelligence Quotient (IQ) is as follows

IQ = MA/CA

Then for chronological age:

CA = MA/IQ*100
CA = 23/115*100
= 2300/115*100

=20

So, the chronological age of Riju is 20 years.
Here, the Intelligence Quotient of Benu = 125
And mental age of Benu = 25 years
The formula to calculate the Intelligence Quotient (IQ) is as follows

IQ = MA/IQ*100

Then for chronological age:

CA = MA/IQ*100
CA = 25/125*100
= 2500/125

=20

So, the chronological age of Benu is 20 years.