The sky is blue because the molecules in the air scatter light in the higher wavelengths (that is, the blue light), while lower wavelength light (that is, the light on the red end of the spectrum) goes through to the ground. So the light that get finally reflected down from the scattering is blue, therefore a blue sky. This is called Rayleigh scattering.
A, B and C started a online education website by investing Rs.28,000, Rs.36,000 and Rs.40,000 respectively. Find the share of A’s, out of an annual pr...
‘A’ invested Rs. 7500 for ‘x’ months while ‘B’ invested Rs. 1500 less amount than ‘A’ for (x + 4) months...
"Amit, Bheem, and Chintu began a business with initial investments of Rs. 6,000, Rs. 9,000, and Rs. 15,000, respectively. After o...
A and B enter into a partnership with their initial sum of Rs.30000 and Rs.45000 respectively. After 9 months, a third person C also joins them with his...
A and B invests Rs. (X-1200) and (X+1800) in a business respectively. Investment period of both of them was same. If the total profit is Rs. Y and profi...
The savings of E and F are identical. The difference between F's expenditure and the combined savings of E and F is zero. B's income is Rs. 36,000, and ...
The contributions made by A and B are in the ratio of 6:5. If 12% of total profit is donated and A gets 1320 as his share of profit, what is the total p...
A, B and C enter into a partnership, A invest X + 9000, B invest X + 6000 and C invest X + 7500 for one year if B share is 30000 from total profit of 90...
A and B started a business by investing sum in the ratio 4:7 respectively for 6 and 8 months respectively. If annual profit earned by B is Rs.2100, then...
P and Q together started a business with initial investment in the ratio of 1:9, respectively. The time-period of investment for P and Q is in the ratio...
