At which temperature the speed of sound in hydrogen will be same as that of speed of sound in oxygen at `100^@C`

The ratio of densities of nitrogen and oxygen is 14 : 16. The temperature at which the speed of sound in nitrogen will be same as that in oxygen at 55^@C is

The ratio of densities of nitrogen and oxygen is 14:16. The temperature at which the speed of sound in nitrogen will be same as that in oxygen at 55^@C is

The temperature at which the velocity of sound in oxygen will be same as that of nitrogen at 15^(@) C is

The temperature at which the velocity of sound in oxygen will be same as that of nitrogen at 15^(@) C is

At what temperature will the speed of sound in hydrogen be the same as in oxygen at 100^(@)C ? Molar Masses of oxygen and hydrogen are in the ratio 16: 1 .