Which of the following colour of white light has the maximum wavelength?
In the spectrum of visible light, the color red has the maximum wavelength. Among the colors of white light, red light typically ranges from approximately 620 to 750 nanometers (nm) in wavelength, making it the longest wavelength of visible light.
The population of a city is decreased by 15% in the first year and then increased by 25% in the second year. Find the population of the city at the end...
Rajesh spent 47% of his monthly income on food and 53% of the remaining of study. If total monthly savings (after spending on food and study) of Rajesh ...
Two numbers are less than a third number by 35% and 48% respectively. Find the percent by which the second number is less than the first.
A company allowed 16% commission on the total sales made by the salesman and a bonus of 1% on the sales over Rs.25000. If the salesman deposited Rs. 66...
Income of A is 52% of the Income of B and A together. The saving of B is 30% of his Income and equals to Rs. 8100. Find the difference between the incom...
The number of boys and girls in a school is 250 and 300 respectively. 20% of boys left the school while 40 girls took admission in the school. Find the ...
The respective ratio of monthly income of A to monthly income of B is 11:12, and A’s saving is (100/17)% more than B’s saving. Find the expenditure ...
The cost price of juice is 50% more than the cost price of lemon soda. A juice seller mixed 120 ml of juice with 30 ml of lemon soda in a glass. By mist...
If radius of a sphere is decreased by 48%, then by what percent does its surface area decrease?
A spent 36% and 25% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 15% and 10% to his mother and brother, respec...
