The solution of 3(2u + v) = 7 uv and 3(u + 3v) = 11 uv is _____

Mental Ability - Questions

u = 1, v = 0

u = 1, v = 3/2

u = 0, v = 1

u = 0, v = 3/4

Correct Answer : Option (B) - u = 1, v = 3/2

Explanation :

Using Trial and error method,

From the options u = 1, v = 3/2 satisfies both the equations.

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Q .

In the following question :

Various terms of an alphanumerical series are given with one or more terms missing as shown by (?).

Choose the missing terms out of the given alternatives. BMO, EOQ, HQS, ?

SOV

LMN

KSU

SOW

Correct Answer : KSU

Explanation : The first letter moves 3 steps forward. The second and third letters move 2 steps forward.

Q .

What should come in place of the question mark (?) in the following number series? 8, 6, 9, 23, ?

Correct Answer : 87

Explanation :

Given number 8, 6, 9, 23, ?

The pattern of given series is :

8 x 1 - 2 = 6 6 x 2 - 3 = 9 9 x3 - 4 = 23 23 x4 - 5 = 87