Question
The ratio of age of Rahul 7 years ago to the age of Neha
7 years hence is 3:4. If the average of their present ages is 35 years, what is the difference between their present ages?Solution
ATQ Let the present age of Rahul and Neha be ‘r’ years and ‘n’ years, respectively. So, (r – 7) / (n + 7) = 3 / 4 Or, 4r – 28 = 3n + 21 Or, 4r – 3n = 49 ------------------ (1) Also, r + n = 2 × 35 = 70--------------- (2) Equation (2) × 3 + Equation (1), we get 7r = 259 Or, r = 37 So, n = 70 – 37 = 33 Required difference = 37 – 33 = 4 years
- Which schemes have been merged under the restructured Skill India Programme (SIP)?
Which of the following city host the 2nd G20 EdWG Meeting and Seminar on ‘Strengthening Research, Promoting Innovation through richer Collaboration’...
Consider the following statements regarding the One Station One Product scheme:
1. It is an initiative of the Ministry of Commerce
2. ...
What is the initial corpus of the Agri-SURE fund unveiled by NABARD to promote innovation in agriculture and rural development?
What was the target asset monetization under the National Monetization Pipeline for 2023-24?
Which of the following statements is TRUE regarding the RBI's Prompt Corrective Action (PCA) framework for Urban Cooperative Banks (UCBs) effective from...
What is the purpose of Dawki Land Port inaugurated by Union Minister Nityanand Rai in Meghalaya's West Jaintia Hills district?
In which state the 37th edition of National Games of India will be organized?
What is the primary aim of the Bhagirath app launched in Uttarakhand?
Consider the following statements:
1. The NSSO's MPCE survey helps in adjusting national inflation indices.
2. Kerala has the highest rura...