Table Charts

The following table gives the percentage of marks obtained by seven students in six different subjects in an examination. The Numbers in the Brackets give the Maximum Marks in Each Subject. Student Subject (Max. Marks) Maths Chemistry Physics Geography History Computer Science (150) (130) (120) (100) (60) (40) Ayush 90 50 90 60 70 80 Aman 100 80 80 40 80 70 Sajal 90 60 70 70 90 70 Rohit 80 65 80 80 60 60 Muskan 80 65 85 95 50 90 Tanvi 70 75 65 85 40 60 Tarun 65 35 50 77 80 80

1.  What are the average marks obtained by all the seven students in Physics? (rounded off to two digit after decimal) A. 77.26 B. 89.14 C. 91.37 D. 96.11 Answer: Option B Explanation: Average marks obtained in Physics by all the seven students = 1 x [ (90% of 120) + (80% of 120) + (70% of 120) 7               + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ] = 1 x [ (90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120 ] 7 = 1 x [ 520% of 120 ] 7 = 624 7 = 89.14. 2.  The number of students who obtained 60% and above marks in all subjects is? A. 1 B. 2 C. 3 D. None Answer: Option B Explanation: From the table it is clear that Sajal and Rohit have 60% or more marks in each of the six subjects. 3.  What was the aggregate of marks obtained by Sajal in all the six subjects? A. 409 B. 419 C. 429 D. 449 Answer: Option D Explanation: Aggregate marks obtained by Sajal     = [ (90% of 150) + (60% of 130) + (70% of 120)           + (70% of 100) + (90% of 60) + (70% of 40) ]     = [ 135 + 78 + 84 + 70 + 54 + 28 ]     = 449.

Data Interpretation

Study the following table and answer the questions based on it. Expenditures of a Company (in Lakh Rupees) per Annum Over the given Years. Year Item of Expenditure Salary Fuel and Transport Bonus Interest on Loans Taxes 1998 288 98 3.00 23.4 83 1999 342 112 2.52 32.5 108 2000 324 101 3.84 41.6 74 2001 336 133 3.68 36.4 88 2002 420 142 3.96 49.4 98

1.  What is the average amount of interest per year which the company had to pay during this period? A. Rs. 32.43 lakhs B. Rs. 33.72 lakhs C. Rs. 34.18 lakhs D. Rs. 36.66 lakhs Answer: Option D Explanation: Average amount of interest paid by the Company during the given period     = Rs. 23.4 + 32.5 + 41.6 + 36.4 + 49.4 lakhs 5     = Rs. 183.3 lakhs 5     = Rs. 36.66 lakhs. 2.  The total amount of bonus paid by the company during the given period is approximately what percent of the total amount of salary paid during this period? A. 0.1% B. 0.5% C. 1% D. 1.25% Answer: Option C Explanation: Required percentage = (3.00 + 2.52 + 3.84 + 3.68 + 3.96) x 100 % (288 + 342 + 324 + 336 + 420) = 17 x 100 % 1710  1%. 3. Total expenditure on all these items in 1998 was approximately what percent of the total expenditure in 2002? A. 62% B. 66% C. 69% D. 71% Answer: Option C Explanation: Required percentage = (288 + 98 + 3.00 + 23.4 + 83) x 100 % (420 + 142 + 3.96 + 49.4 + 98) = 495.4 x 100 % 713.36  69.45%.

Clock puzzles

Answer	:	5:19
Explanation	:	Starting with the watch on the left, add 42 minutes to the time shown to give the time on the next watch to the right. Answer : Hand pointing to 5 Explanation : Starting with the top clock and moving anti-clockwise around the others, the hour hand moves back 1 hour, then 2, then 3 etc, while the minute hand moves forward 10 minutes each time. Answer : To the 4 Explanation : Start with the top left clockface, and move around the others in a clockwise direction. The value pointed to by the hour hand equals the value pointed to by the minute hand, subtracting 4 for the first clockface, 5 for the next, then 6 etc.

Logical puzzles

Answer	:	D
Explanation	:	The number of black dots in each grid increases by 1 each time, starting with the top left grid and working to the right, top row then bottom row. Answer : Q Explanation : Adding the three numbers in each square together gives the numerical value of the letter at the centre of each square. Answer : Hammer Explanation : The Hammer = 1, the File = 3 and the Axe = 5

Playing cards puzzles

Answer	:	9 of Clubs
Explanation	:	Taking red cards as positive values and black cards as negative values, in each column of the diagram, the lower card value equals the sum of the two upper card values. The suits are used alternately in each column.