Verbal Reasoning - Mental Ability Questions

If 5Δ1 = 40, 9Δ9 = 0 and 7Δ1 = 60, then find the value of 4Δ9 = ?

In a certain code language, “TUBE” is written as “202125” and “PINCH” is written as “1691438”. How is “MARC” written in that code language?

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

JD,?,QK, VP, BV

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

ab_d_ed_baa_ _de

In the following question, select the number which can be placed at the sign of ? from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

Nikhil is 8 yr younger than his brother Rohan . How old will Rohan be when he is twice as old as Nikhil ?

The following question consist of two words that have a certain relationship to each other, followed by four alternatives. Select the best alternative that has the same relationship as the original pair of words

Evaporation: Cloud