Verbal Reasoning - Mental Ability Questions

If "A" denotes "added to", "B" denotes "divided by", "C" denotes "multiplied by" and "D" denotes "subtracted from", then 87 B 3 C 4 A 4 D 50 = ?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

c_e_cd_f_de_

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

KRK, LTN, MVQ, ?

Select the missing number from the given responses?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
642 x 6 ÷ 25 + 4 = ?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

54 x 9 - 3 ÷ 4 = ?

Starting from his house, Manish moves 25 km towards south­east and then turns to the west and covers another 7 km. How far (in kilometres) is he now from his house?

Ramesh moves toward the east and covers 30 m and then takes a right and covers 40 m. Find the direction and the distance from the initial point to the final point.