Question
The average age of 6 sisters is 30 yr. If the age of the
youngest sister be 5 yr. What was the average age of the group of sister just before the birth of the youngest sister?Solution
Total age of 6 sisters = 30 × 6 = 180 years 5 years ago, Total sum of ages = 180 – (5 × 6) = 150 years But at that time (5years ago), there were 5 sisters in the group ∴ Average age at that time (5 years ago) = 150/5 = 30 years Hence, the required answer is 30 years.
What is the range of the Agni-5 missile recently test-fired by India in 2025?
What is the theme of the IICDEM 2026 conference?
According to the Global Multidimensional Poverty Index, which group makes up more than half of the 1.1 billion people living in acute poverty?
For what reason may Indian javelin thrower Shivpal Singh face an eight-year ban?
- As per RBIโs revised LCR norms, what is the new additional run-off factor for digital deposits enabled via IMB?
Controller General of Accounts has released data on India's fiscal deficit .Which of the following statements is/are incorrect with respect to Indiaโs...
In which event did Wriddhiman Saha announce his retirement from all forms of cricket?
- Which state recorded the highest growth in GST revenue collections for February 2025?
According to participation figures of the AI Impact Summit 2026, approximately how many speakers took part across different sessions?
What percentage of land in the Puducherry SEZ IT Park is allocated for plug-and-play office infrastructure?