Question
A boy can swim in water with a speed of 15 km/hr in
still water. If the speed of the stream is 8 km/hr, what will be the time taken by the boy to cover 69 km downstream?Solution
Downstream Speed = (15 + 8) km/hr = 23 km/hr Time taken = 69/23 = 3 hours
A and B started a business investing Rs. 1200 for ‘x’ months and Rs. 1800 for 16 months, respectively. Out of total profit of Rs. 3500, pro...
The current ages of Anoop and Bhuvan are in the ratio of 5:8. In 8 years, Bhuvan's age will be 60% greater than Anoop's age in 5 years. Determine the cu...
The average age of a group of 25 persons is found to be 30 years. Later it is found that age of two of the persons is calculated as 32 and 60 ins...
- The average score of Neha in 5 subjects was recorded as 62. However, her marks in Science and History were mistakenly entered as 49 and 60 instead of 59 an...
The average age of 22 children and their teacher's age are 20 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
The average of 25 numbers is 39.4. The average of the first 12 numbers is 36.5, and the average of the last 12 numbers is 40.5. Determine the value of t...
The average of 30 numbers is 1.2. The average of the first 20 of them is 1.1 and that of the next 9 is 1. Then the last number is:
What is the average of the squares of the first 41 natural numbers?
Each question contains a statement followed by Quantity I and II. Read the information clearly and answer your questions accordingly.Â
 Quan...
- The average weight of a group of people is 62 kg. A person weighing 80 kg joins the group and the average increases by 1 kg. Find the total weight of the g...
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