Verbal Reasoning - Mental Ability Questions

If 4Δ2 = 60, 7Δ9 = 160 and 8Δ3 = 110, then find the value of 3Δ2 = ?

In the following question, select the related letters from the given alternatives.
JPC : GMZ : : PUV : ?

In a row of swimmers Manish, is 23rd from the left end. Ramesh is 11 ranks to the left of Manish. If Ramesh is 16th from right end, then how many swimmers are there in this row?

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

5, 9, 13, 17, ?, 25

In the following question, select the missing number from the given series.

54, 51, 48, 45, 42, ?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
-7.25, -5.75, -4.25, -2.75, ? , 0.25

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

?, HI, OP, WX

Select the related word from the given alternatives.
Cotton : White :: Coal : ?