2 2 6 2 4 5

# MENTAL ABILITY SET 2 SOLVED 5 QUESTIONS

Q.1 Problem figures:

Ans. C

Q.2 Problem figures:

Ans. B

Q.3 Consider the following diagrams:
x men, working at constant speed, do a certain job in y days. Which one of these diagrams shows the relation between x and y?

A) diagram I
B) diagram II
C) diagram III
D) diagram IV
Ans. A
Since the product of X & Y will be constant.
Therefore, Ist shows the relationship between X & Y.

Q.4 Consider the following matrix:

3 370 7
2 224 6
1 730 X
What is the number at ‘X’ in the above matrix?
A) 5
B) 8
C) 9
D) 11
Ans. C
Since, 33 + 73 = 27 + 343
=370
& 23 + 63 =8+ 216
=224
Therefore,
13+x3=730
X3=730-1
=729
X=(729)1/3
X=9

Four cars are hired at the rate of Rs. 6 per km plus the cost of diesel at Rs. 40 a litre. In this context, consider the details given in the following table:
Car Mileage (km/l) Hours Total Payment (Rs.)
A 8 20 2120
B 10 25 1950
C 9 24 2064
D 11 22 1812

Q.5 Which car maintained the maximum average speed?
A) Car A
B) Car B
C) Car C
D) Car D
Ans. A 