Question
The ratio of the present age of 'E' to that of 'F' is
2:3. If six years hence, the ratio of their ages will become 3:4, find the sum of their ages, five years ago from now.Solution
Let the present ages of 'E' and 'F' be '2z' years and '3z' years, respectively. ATQ, (2z+6)/(3z+6) = 3/4 Or, 4×(2z+6) = 3×(3z+6) Or, 8z+24 = 9z+18 Or, 9z−8z = 24−18 So, z = 6 Present age of 'E' = 2z = 2 × 6 = 12 years Present age of 'F' = 3z = 3 × 6 = 18 years Required sum = (12 - 5) + (18 - 5) = 7 + 13 = 20 years
According to the United Nations Department of Economic and Social Affairs (UN DESA), India’s GDP growth for FY 2025–26 is estimated at:Â
Where will the 2nd WHO Global Summit on Traditional Medicine (Dec 2025) be hosted?Â
- Which is the main target group of the Niveshak Didi initiative?
Which Indian state nominated Dzükou Valley as a global tourist destination under the Ministry of Tourism’s initiative?Â
When was the Crocodile Conservation Project (CCP) originally launched in India?Â
Which company became the sixth Indian firm to enter the USD 100 billion market capitalization club in November 2025?Â
What is the additional provisioning required per quarter if DCCO is deferred for non-infrastructure projects?Â
Who won the gold medal in Men’s Javelin Throw F44 event at the 2025 World Para Athletics Championships?Â
What event will Bihar host in March 2025?
What percentage of the global population affected by HIV lacks access to treatment, as reported by UNAIDS?
Relevant for Exams:
