Which one set of letters when sequentially placed at the gaps in the given letter series, shall complete it?
r_se_os_ro_er_se

The number inside the triangle ABC in each question has been arrived based on some logic and is dependent upon the numbers written outside the triangle. On the same logic, find out the missing number in triangle DEF.

The number inside the triangle ABC in each question has been arrived based on some logic and is dependent upon the numbers written outside the triangle. On the same logic, find out the missing number in triangle DEF.

A firm has 40 workers working in the factory premises. 30 working in its office and 20 working in both the factory and the office. How many workers are there in the firm if all workers work either in the factory or office?

Which one set of letters when sequentially placed at the gaps in the given letter series, shall complete it?
l_n_mllm_n_l

The number inside the triangle ABC in each question has been arrived based on some logic and is dependent upon the numbers written outside the triangle. On the same logic, find out the missing number in triangle DEF.

In each of the following questions, select the missing number / letters from the given options

Which one set of letters when sequentially placed at the gaps in the given letter series, shall complete it?
ZYX_W_YZZ_XWWXY

In the  question, relationship between different elements is shown in the statement.
The statement is followed by two conclusions.
Statements:
B > C = D ≥ X ; E ≤ X ; Z ≥ D
Conclusions : I. B > E,  II. Z ≥ B

B is the brother of A, whose only sister is mother of C.D is maternal grandmother of C. How is A related to D?