Question
What is the colour of the outer zone of complete
combustion of candle flame?Solution
The outermost zone of a candle flame is blue in colour. It is also called non-luminous zone where the complete combustion of wax takes place.
The ratio of the pocket money of two persons ‘P’ and ‘Q’ is 5:2, respectively. ‘P’ spends 60% of his pocket money while ‘Q’ spends 25% o...
The ratio of the two numbers is 4:11. 120% of the first number is equal to the 70% of the second number. Find the sum of both the numbers.
- A total of Rs. ‘K’ was to be distributed among P, Q, and R in ratio of 7:5:6 respectively but due to some reason the money was falsely distributed in r...
There are 70 rupees in a box which contains coins of 1 rupee, 50 paise, and 25 paise. If the number of 50 paise coins is 2 times the number of 25 paise ...
Ratio of monthly income to monthly expenditure of A is 20:7, respectively and monthly savings of A is Rs. 3900. Find the monthly income of A.
The monthly incomes of Vishal and Rahul are in the ratio 7:6. Their combined monthly income is Rs. 6500. Rahul's monthly savings are Rs. 1200, and Visha...
The ratio of the two numbers is 7:15. 120% of the first number is equal to the 70% of the second number. Find the sum of both the numbers.
The cost of diamond varies directly as the square of its weight. A diamond broke into four pieces with weights in the ratio 2 : 3 : 5 : 6. if the loss i...
What number has to be added to each term of 3:4 to make the ratio 6:7?
The ratio of the monthly salary of Supriya to that of Mohini is 3 : 5. Supriya and Mohini both save 30% and 42% respectively of their monthly salaries r...
