Try this Aptitude_Maths Problem

Quantitative Aptitude : Train Problems

The number of students appearing for the Aptitude Test from Town D is approximately what percentage of the number of students appearing for the Aptitude Test from Town C ? (a) 243 (b) 413 (c) 134 (d) 341 (e) 143

The probability of solving a problem by three students are 1/3,1/4,1/5 . Find the probability that the problem will be solved if all three students try the problem simultaneously.

Maths Of Ydse

Math the columns

IMPROVE THE SENTENCE: I "try to solve" this problem for two hours.