Question
In an office, there are 52
employees with an average weight of 38 kg. When the office manager's weight is included, the average weight of everyone in the office increases by 200 grams. What is the weight of the manager?Solution
ATQ,Total weight of all the employees = (52 Ă— 38) = 1976 kg Total weight of the all the person in the office including the manager = (53 Ă— 38.2) = 2024.6 kg Therefore, the weight of the manager = 48.6 kg Alternate Solution Required weight of the class teacher = {(53 Ă— 200)/1000} + 38 = 48.6 kg
The ratio of tea cups to coffee cups in a canteen is 6:5. If 18 tea cups are broken and 12 new coffee cups are added, the count of both becomes equal. F...
Mohini's Biology test had 250 questions i.e., 20 Macromolecules, 60 Homeostasis and 70 Immunology questions. Although she answered 70% of the Macromolec...
Ratio of the number of pens with Sumit, Rohan, Chetan, Dheeraj and Gagan is 2 : 3 : 4 : 5 : 6 respectively. If two of them have more than 20% of the tot...
The ratio of the present ages of A and B is 10:7. After 8 years, the ratio of their ages will be 12:9. Find the ratio of their ages 12 years ago.

- The ratio of boys to girls in a school is 5:7. If 20 more boys and 20 more girls join, the ratio becomes 10:13. Find the original number of girls in the sc...
The ratio of males and females in a zoo is 3:5 respectively and the percentage of children among males and the percentage of children among females are ...
- Manisha distributed 240 pencils among her three classmates—Nikhil, Arjun, and Sneha—in the ratio 2:3:5 respectively. Find the difference between the nu...
The total number of phones to the total number of laptops in Stores A and B is in the ratio 120:13. Additionally, the number of laptops in Store A to t...