CAT4MBA

Q1. Calculate the cost of paper lead to cover the four walls of a hall measuring 9m by 5m by 4m. leave 9m2 of this area of doors and windows. The cost of paper measuring 3m by 1m is Rs.12 and only full sheets can be purchased.
a. 400
b. 420
c. 450
d. 500

here lxbxh=9x5x4 m

so walls are 9x4-(2n0)  and 5x4-(2n0)   for 9x4 wall requird 12 sheet
                                            5x4 wall required 7 sheet

but if we put door  in 9x4 wall we need 12+9 sheet for (9x4)wall and (5x4)=14 wall

so total sheet=35 so cost=35x12=420  if we put door in 5x4 wall then total sheet=24+4+7=35 so same(420) cost

Q4. A student took five papers in an examination, where the total marks were the same for each paper. His marks in these papers were in the proportion of 6 : 7 : 8 : 9 : 10. In all papers together, the candidate obtained 60% of the total marks. Then the number of papers in which he got 60% or less marks is :
a. 2
b. 3
c. 4
d. 5

if we take 1 paper mark=100 then he total got=500*0.60=300

now marks r in 6:7:8:9:10  so he got (300/40)*6=45,52.5,60,67.5 and 75

so he got 60% and less in 3 subject

so ans is (b)

Q3. A test has 50 questions. A student scores 1 mark for each correct answer and -1/3 for every wrong answer, and -1/6 for not attempting a question. If the net score of the student is 32, the number of questions wrongly answered by the student cannot be less than
a. 6
b. 12
c. 3
d. 9

ans is 6 option(a)

Little STar