Question
Determine the diameter of the incircle of a triangle
whose area is 60 cm² and the semi-perimeter is 20 cm.Solution
ATQ,
Radius of in-circle = area of triangle / semi-perimeter = 60 / 20 = 3 cm Therefore, diameter of the in-circle = 2 × 3 = 6 cm
The monthly incomes of persons A and B are ₹4800 and ₹6400, respectively, while their monthly expenditures are ₹3600 and ₹5400. What is the rati...
84 is what % of 120?
The weight of two persons Vishwas and Vivek are in the ratio 5:7. If the weights are increased in such a way that Vivek’s weight is increased by 2...
A spent 30% and 20% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 20% and 30% to his mother and brother, respec...
Monthly income of Neha and Suresh is Rs. 68,500 and Rs. 74,800 respectively. Neha spends 10%, 15%, and 19% on house rent, food, and education of childre...
A man spent 20% of his income in May. If his savings is increased by 20% in June and becomes Rs. 11520, then find the income of man in May.
- In a village, 25% of the people are not allowed to vote. Out of the eligible voters, 40% are females. If (1/4)th of eligible female voters and (5/10)th of ...
- Ravi spends 80% of his monthly salary. He also receives a bonus every month which is 10% of his salary. If his annual saving is Rs. 132000, find the bonus ...
In a city, the number of persons travelling by bike is 80% the number of persons travelling by metro. The number of persons travelling on foot is 70% th...
In an examination having total 300 questions, in the first section having 180 questions. A student got 75% marks in first section, but he got 83% marks ...
