GATE-2012 Solutions (General Aptitude)(EC/EE/NI)

click here for useful concepts            click here for puzzles

Q1) Raju has 14 currency notes in his pocket consisting of only Rs 20 notes and Rs 10 notes. The total money value of the notes is Rs 230. The number of Rs 10 notes that Raju has is:

(A)  5                     (B)    6             (C)   9              (D)   10                         (2 Marks)

GATE-2012 Solutions (General Aptitude)(CE/CS/ME/PI)

click here for useful concepts                     click here for puzzles

Q1) The cost of function for a product in a firm is 5q², where q is the amount of production. The firm can sell the product at a market price of Rs 50 per unit. The number of units to be produced by the firm such that the profit is maximized is

(A)      5           (B)      10         (C)      15         (D)     25                             (1 Mark)

Geometry- 21

Carpenter Rajesh has a circular piece of plywood of diameter 30 feet. He has cut out two disks of diameter 20 feet and 10 feet. What is the diameter of the largest disk that can be cut out from the remaining portion of the plywood piece?

A. >8.00 feet and ≤ 8.20 feet

B. >8.21 feet and ≤ 8.40 feet

C. >8.41 feet and ≤ 8.60 feet

D. >8.61 feet and ≤ 8.80 feet

E. >8.81 feet and ≤ 9.00 feet

To enter your answer click on “comments” below:

XAT-2012 Detailed Solutions (Quantitative Ability)

click here for useful concepts                     click here for puzzles

Q1) A spherical metal of 10 cm radius is molten and made in to 1000 smaller spheres. In this process, the surface area of the metal is increased by:

(A)  1000

(B)   100

(C)   10

(D)  No change

(E)   None of the above  

Solution follows here...