Question
The average weight of a group of 5 men increases by 2 kg
when a new person weighing 78 kg joins the group. What was the average weight of the group before the new person joined?Solution
Let the average weight of the original 5 men be x kg. Total weight of the original 5 men = 5x After adding the new person, the total weight = 5x + 78 New average weight = x + 2 So, 5x + 78 = 6 × (x + 2) 5x + 78 = 6x + 12 78 - 12 = x x = 66
India signed a $750 million currency swap agreement with which country to help manage its foreign currency crunch?
The Rolling Plan for backward countries was suggested by which economist?
From when will RBI’s bar on prepayment penalties for floating rate loans to MSEs be effective?Â
What is the estimated cost of the 'Nijut Moina' scheme announced by Assam's Chief Minister over five years?
As per Union Budget 2025-26, what is the new corpus allocated for the National Pension System (NPS) to enhance social security?
What do we call the banks which provide capital to the firms in the form of shares and engage in underwriting of stocks?
What significant milestone did India achieve in digital payments according to the RBI-DPI in March 2025?Â
Who was appointed Chairman of the Fertiliser Association of India (FAI) in June 2025?Â
Which award will RRR star Ram Charan receive at the Indian Film Festival of Melbourne (IFFM) 2024?
Recently Prime Minister of India visited which of the following place to celebrate Deepawali with the armed forces?