Clerk Express – Quantitative Aptitude 7




1. In the figure given below,the perimeter of the circle is 176cm. What is the area of the shaded portion (in cm²)?

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1) 2042 2/3    2)1762 2/3     3)1642 2/3     4)1542 1/3     5)None of these

Spoiler title
ANS:3

2 pi r=176 thn r=28cm

shaded area=360-120=240

Area of shaped portion =pi r²*240/360==> 22/7*28*28*240/360=1642 1/3

Q(2-4) Study the given information carefully to answer the questions that follow

An urn contains 5white ,4green, 2blue and 3 black marbles

2. If two marbles are drawn at random, what is the probability tat both are green or at least one is green?

1)25/91   2)46/91   3)33/91    4)4/91    5)None of these

Spoiler title
ANS:2

(4C2 + 4C1 x 10C1)/14C2= 46/91

3. If 3 marbles are drawn at random ,what is the probability that none of them is White?

1)3/364    2)11/364   3)3/13   4)4/91    5)8/91

Spoiler title
ANS:3

9C3/14C3=3/13

4. If 3 marbles are drawn at random ,what is the probability that at least one marble is black?

1)165/364   2)175/364   3)199/364   4)1/3    5)1/7

Spoiler title
ANS:3

(3C1 x 11C2 + 3C2 x 11C1 + 3C3)/14C3

5.If the length of a rectangular field is increased by 20% and breadth is reduced by 20%,the area of the rectangle becomes 288m². What is the area of the original rectangle?

1)384 m²    2)320 m²     3)300 m²      4) 304 m²     5)336 m²

Click to View Answer
ANS:3

original size=100*100=10000

reduced size=120*80=9600==>288m²

288/9600*10000=300m²

6. The compound interest accrued on an amount at the end of two years at 12% per annum is 2544 Rs. What is the amount?

1)12500    2)11600    3)10100   4)10000  5)None of these

Click to View Answer
ANS:4

P[(1+12/100)²-1]=2544

P=10000

Q(7-10)Study the following pie-chart and table carefully and answer the questions given below

Percentage distribution of computers sold by a shopkeeper during the given six months

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Total No.of computers sold=75000

The ratio of the number of computers of company X to that of Company Y sold during the given six months

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7. What is the ratio of the number of computers of company Y sold during january to that sold during april?

1)135:132   2)132:137   3)13:44    4)113:39    5)None of these

Click to View Answer
ANS:3

8. If 37% of the computer of company Y were sold at a discount in may ,how many computers of company Y were sold without any discount during the same month?

1)1690   2)1691    3)1707    4)1701    5)1700

Click to View Answer
ANS:4

9. If the shopkeeper earned a profit of Rs.517 on each computer of company Y sold during April,What was his total profit earned of that company on the same month?

1)5800740   2)2728290     3) 3729760   4)5900741   5)None of these

Click to View Answer
ANS:3

10. The number of computers of company X sold during January is approximately what percentage of the number of computers of that company sold during May?

1)90%   2)78%   3)80%    4)83%   5)96%

Click to View Answer
ANS:5

Folks!!Today there is no practice test. Clerk Express Practice tests will be resumed on 11th November 2015. Sorry for the inconvenience. Till then you can attend regular quizzes.