What is the mode of the data given below? [Give your answer correct to 2 decimal places.]
Age in years: 15-25, 25-35, 35-45, 45-55, 55-65, 65-75, 75-85
No. of patients: 14, 32, 39, 38, 10, 36, 22
In finding the HCF of two numbers by division method, the quotients are 1, 5, and 8, respectively, and the last divisor is 57. What is the LCM of the two numbers?
A train P going at the speed of 30 km/hr completely passes train Q of length 296 m, going in the same direction on parallel tracks, at 21 km/hr, in 6.5 minutes. How much time (in seconds) will P take to cross completely train R of length 196 m, going at 96 km/hr in the opposite direction?