Question
Eight years ago, the ratio of the ages of Rohan and
Sohan was 5:6, respectively. Five years hence, the ratio of the ages of Mohan and Sohan will be 6:7, respectively. If Mohan is 3 years younger than Rohan, find the age of Rohan, 'a' years hence, where 'a' is the smallest two-digit composite number.Solution
ATQ, Let the ages of Rohan and Sohan 8 years ago be 5x years and 6x years, respectively. Age of Mohan 8 years ago = 5x−3 years Age of Rohan now = 5x+8 Age of Sohan now = 6x+8 Five years hence: Age of Rohan = 5x+8+5=5x+13 Age of Sohan = 6x+8+5=6x+13 Age of Mohan = 5x+13−3=5x+10 Given: 
Solving the equation: 7×(5x+10)=6×(6x+13) 35x+70=36x+78 36x−35x=70−78 x=8 Since 10 is the smallest two-digit composite number: Age of Rohan, 10 years hence = 5x+8+10=5×8+8+10=58 years.
The book "The India Way: Strategies for an Uncertain World" is written by the author?Â
What milestone has India Post Payments Bank (IPPB) recently achieved in terms of the number of customers benefiting from its financial services?
Where are the headquarters of National Skill Development Corporation?
Who was the Secretary of State for India when the Council Act of 1909 was enacted?
From which date the Reserve Bank of India (RBI) has increased the CRR by 50 basis points to 4.5%?
 Amongst the following, which state celebrates Gangaur festival?
The leading financial services and solutions company Paytm has raised India's largest IPO of valuations Rs _______ crores?
A tank can be filled by pipe A in 5 hours and emptied by pipe B in 8 hours respectively. How much time will it take for the tank to be filled?
In August 2020, the Africa Regional Certification Commission certified the WHO
African Region as free from _______ after four years without a case?
In the context of a buffer in memory area or disk, spool refers to:
