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Meet the Author : Mr. Bharani Kumar
Bharani Kumar Depuru is a well known IT personality from Hyderabad. He is the Founder and Director of Innodatatics Pvt Ltd and 360DigiTMG. Bharani Kumar is an IIT and ISB alumni with more than 17 years of experience, he held prominent positions in the IT elites like HSBC, ITC Infotech, Infosys, and Deloitte. He is a prevalent IT consultant specializing in Industrial Revolution 4.0 implementation, Data Analytics practice setup, Artificial Intelligence, Big Data Analytics, Industrial IoT, Business Intelligence and Business Management. Bharani Kumar is also the chief trainer at 360DigiTMG with more than Ten years of experience and has been making the IT transition journey easy for his students. 360DigiTMG is at the forefront of delivering quality education, thereby bridging the gap between academia and industry.
A mother is twice as old as her son. If 20 years ago, the age of the mother was 10 times the age of the son, what is the present age of the mother?
- a) 38 Years
- b) 40 Years
- c) 43 Years
- d) 45 Years
Answer - d) 45 Years
"Let the age of son = X years
∴Age of mother would be =2X
As per question 20 years ago;
10 (X -20) = 2X - 20
10X - 200 = 2X - 20
10X - 2X= - 20 + 200
8X = 180
X=Apti Problem on ages = 22.5 years
∴Age of mother = 22.5 * 2 = 45 years"
Four years ago a man was 6 times as old as his son. After 16 years he will be twice as old as his son. What is the present age of man and his son?
- a) 34, 9
- b) 33, 7
- c) 35, 5
- d) 36, 6
Answer - a) 34, 9
"et age of son 4 years ago be = X
So, age of man 4 years ago would be = 6X
As per question after 16 years;
2* age of son = age of man
2(X + 4 +16) = (6X + 4 + 16)
2X +40 = 6X + 20
2X - 6X = 20 - 40
- 4X = - 20
X = 5 years
∴Present age of son = 5 + 4= 9 years
Present age of man = 6X + 4= 6*5 + 4 = 30 +4 = 34 years"