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Digiron [165]
4 years ago
15

A person with a mental age of 13 and a chronological age of 20 has an IQ of 104.104. What is the chronological age of a person w

ith a mental age of 25 and an IQ of 100
Mathematics
1 answer:
leonid [27]4 years ago
7 0

Answer:

Chronological ageC=40

Step-by-step explanation:

The IQ= Q varies directly as a persons metal age M and inversely as the person's chronological age C.

Mathematically it is written as Q=kM/C

Where M= mental age and C = chronological age

Q= 104.104= 13k/20

Cross multiply

104.1 ×20 = 13k

2080.2 = 13k

K= 2080/13

K=160

Rewriting the equation to : Q= 160M/C

Q=160×25/C

100=4000/C

Cross multiply

100C=4000

C= 4000/100

C= 40

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