Question

Four tests—Physics, Chemistry, Mathematics and Biology are to be conducted on four consecutive days, not necessarily in the same order. The Physics test is held before the test which is conducted after Biology. Chemistry is conducted exactly after two tests are held. Which is the last test held? 

(a) Physics 

(b) Biology 

(c) Mathematics 

(d) Chemistry

Answer 1

Correct option (c) Mathematics

Explanation:

Mathematics, Physics, Chemistry and Biology tests have to be held on four consecutive days. Chemistry is conducted exactly after two tests are held, i.e. it is the 3rd test to be held. 

Now, Physics test is held before test which is conducted after Biology, i.e. neither Physics nor Biology is the last test. Hence, Mathematics must be the test which is held last.