Explore topic-wise MCQs in Mental Ability.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Mental Ability knowledge and support exam preparation. Choose a topic below to get started.

1.

Identify the expression equivalent to \[\left( \frac{1}{3y}+\frac{1}{4x} \right)\left( \frac{1}{3y}-\frac{1}{4x} \right).\] 

A. \[\frac{1}{3{{y}^{2}}}-\frac{1}{4{{x}^{2}}}\]
B. \[\frac{1}{3{{y}^{2}}}+\frac{1}{4{{x}^{2}}}\]
C. \[\frac{1}{4{{x}^{2}}}-\frac{1}{3{{y}^{2}}}\]
D. \[\frac{1}{9{{y}^{2}}}-\frac{1}{16{{x}^{2}}}\]
Answer» E.
2.

Simplify the given expression: \[\frac{\mathbf{0}\mathbf{.86\times 0}\mathbf{.86\times 0}\mathbf{.86+0}\mathbf{.14\times 0}\mathbf{.14\times 0}\mathbf{.14}}{\mathbf{0}\mathbf{.86\times 0}\mathbf{.86-0}\mathbf{.86\times 0}\mathbf{.14+0}\mathbf{.14\times 0}\mathbf{.14}}\].

A. 1
B. 0
C. 2
D. -1
E. None of these
Answer» B. 0