Test: Mental Ability (Puzzle) - Software Development MCQ

Given statements: K > M < L = Z = O < P.

Conclusions:

I. P < Z → False (As, L = Z = O < P → P > Z).

II. M = Z → False ( M < L = Z → M < Z and L = Z).

Hence, "Neither Conclusion I nor II correct".

Given: 24$3@8#45*5
After replacing the symbols we get:
24 + 3 x 8 - 45 ÷ 5
= 24 + 3 x 8 - 9
= 24 + 24 - 9
= 48 - 9
= 39
Hence, 39 is the correct answer.

Four friends W, X, Y and Z are students of Class 10th.

i) W and X are good in Hindi but poor in English.

ii) W and Y are good in Science but poor in Mathematics.

iii) Y and Z are good in English but poor in Social Studies.

iv) Z and X are good in Mathematics as well as in Science.

Thus we can see W is not good in Mathematics but good in Hindi.

Hence, the correct answer is "W".

Four friends W, X, Y and Z are students of Class 10th.

i) W and X are good in Hindi but poor in English.

ii) W and Y are good in Science but poor in Mathematics.

iii) Y and Z are good in English but poor in Social Studies.

iv) Z and X are good in Mathematics as well as in Science.

Thus we can see Y and Z pairs of friends are good, both in English and Science

Hence, the correct answer is "Y and Z".

Four friends W, X, Y and Z are students of Class 10th.

i) W and X are good in Hindi but poor in English.

ii) W and Y are good in Science but poor in Mathematics.

iii) Y and Z are good in English but poor in Social Studies.

iv) Z and X are good in Mathematics as well as in Science.

Thus we can see Z is good in English, Mathematics, and Science but poor in Social Studies.

Hence, the correct answer is "Z".

The logic followed is:

Similarly,

Hence, the correct answer is "15".

Decoding the information, 

Given:

14 ÷ 2 + 8 × 5

After replacing the signs from left to right and using the BODMAS rule,

14 + 2 × 8 - 5

= 14 + 16 - 5

= 30 - 5

= 25

Hence, “25” is the correct answer.

Five persons A,B,C,D and E are sitting one above the other on a ladder (not necessarily in the same order).

1) B is sitting above A with one person between them.

2) Only two persons are sitting between A and C. If C is not sitting top, the figure are given below -

In which there is two case in which first one is -

Second case are given below -

After observation of both cases, B is the sitting in the middle.

Hence, "B" is the correct answer.

Let the number be x.

According to the question,

⇒ 80% of x - 80 = 80

⇒ 80% of x = 80 + 80

⇒ (80/100)x = 160

⇒ 80x = 160 × 100

⇒ x = 16000/80

⇒ x = 200

Hence, the correct answer is "200".

Given Statement: P < Q < R < S = T

Conclusion:

I. Q < T → True (As, Q < R < S = T → Thus, it is clear that Q < T. So, the conclusion is true)

II. P > S → False (As, P < Q < R < S → Thus, it is clear that P < S. So, the conclusion is false)

III. R = T → False (As, R < S = T → Thus, it is clear that R < T. So, the conclusion is false)

Hence, the correct answer is "Only conclusion I follows".