## Wednesday, 19 September 2012

### POSTAL LGO EXAM 16/9/2012 (Maths)

POSTAL LGO EXAM  16/9/2012
SOLVED Maths PAPER
1.       The radius of circle is 7 cm then the area of circle is
(a) 153.86 cm sq                                (b) 145.22 cm sq
©150.00  cm sq                                 (d) 152.67 cm sq
Ans (a) 153.86 cm sq

2.        A tax payer is exempted of income tax for the first Rs 40000.00 of his annual income and for the rest of the income , he  has to pay tax at the rate of 20% . if the pays Rs 3160 annually as income tax . find his monthly income.
(a)     Rs 4850                            (b)  Rs 4650
© Rs 4550                            (d) None of these
Ans (b) Rs 4650

3.       The perimeter of an isosceies triangle is 42 cm and its base is 1*1/2 times each of the equal sides . find the length of each side of triangle.
(a)                  12 cm,12 cm,18 cm                (b)  6 cms , 6 cms, 9 cms
©  18 cm, 18cm , 24 cm                (d)  none of these
Ans (A)     12 cm,12 cm,18 cm

4.       Find the total surface area of a cylinder having radius of the base 14 cm and height 30 cm.

(a)    3872 cmsq                      (b)4872 cm sq
©      3782 cm sq                   (d) none of these
Ans 3872  cm sq
5.       When the fractions 9/11,8/10,7/9,7/11 are arranged in the ascending order of value th result is

(a)         7/11,8/10,7/9,9/11               (b) 9/11,8/10,7/9,7/11

6.How  many cubes of 3 cm edge can be cut out of a cube of 18 cm edge ?
(a)          216              (b) 516
©         36              (d)  None of these
Ans (a) 216
7    A reduction of 10% in the price of sugar enables a shopkeeper to abtain 25 Kg more for Rs 2250. The original price per Kg was.
(a)    Rs 8
(b)   Rs 9
(c)    Rs 10
(d)   Rs 11
Ans (b) Rs 9/-

8. The cost price of 19 mangoes is equal to the selling price of 16 mangoes . the gain percnet is

(a)      3*9/17%                  (b) 15*15/19%
Ans (d) 20%
9. A train travelled distances of 10 cm. 20 km and 30 km at speeds of 50 km. ,60 km, and 90 km per hour respectively . the average speed of the train ( in km/hour) was
(a)    66.67                    (b) 60
©   69.23                 (d)  None of these
Ans (a) 66.67
10      find the smallest number which is divisible by 12,15,20 and is a perfect  squar.
(a)       400             (b)180
4.       If 6 men can do a piece of work in 20 days and one man can do the work of two boys, then in how many days can 10 men and 5 boys do the same work
(a)    8 days                (b) 10 days
©    12 days               (d) None of these
Ans (d) None of these

5.       A train of length 150 m takes 40.5 seconds to cross a tunnel of length 300m . The speed of the train ( in Km/Hr) is
(a)       13.33             (b) 26.67
Ans (a) 13.33
6 If a number Is multiplied by three fourth of itself, the value thus obtained is 10800 what is that number.
(a)       210             (b) 180
14 ,If the three fourth of a number is subtracted from the number, the value so obtained is 163. What is that number.
(a)  625                  (b) 562
Ans (d) 652.
15. In a division sum, a student took 63 as divisor instead of 36 . His answer was 24 . the correct answer is.
(a)    36               (b) 42
©   32                    (d)  None of these
Ans (b) 42
16. which of the following is a true statement ?
(a)         phi and 22/7 are both rational            (b) phi and 22/7 are both irrationals
©     phi is rational and 22/7 is irrational        (d) phi is irrational and 22/7 rational
Ans (d) phi is irrational and 22/7 rational
17. If one kilometer is equal to 10 hectometer then 1 hectometer is equal to
(a) 10 decameters          (b) 1 decameter
© 100 decameters         (d) 10 decimeters
Ans  (a) 10 decameters
18. The average of eight numbers taken together is 12 . Two of these numbers are 0  and the remaining numbers are equal. What is the value of the non zero number?
(a)        12                           (b)14
19. The average salary of all workers in a workshop is Rs 850/- There are seven technicians whose average salary is Rs 1000/- and average salary of other is Rs 780/- what is the total number of worker in the workshop.
(a)        18                           (b)20
Ans (d) 22.
20. A sum of Rs 8500/- is to be divided among 5 men, 6 women and 8 boys in the ratio of 10:7:1 . the share of one woman will be
(a)        Rs 85                      (b) 385
Ans   (a) Rs 85
21. Gudia purchased a watch at 9/10th  of its selling price and sold it at 8% more that it selling price. Her gain is?
(a)        18%                        (b) 20%
©         10%                        (d) None of these
22 A fruit seller  had some apples. He sells 40% apples and still has 420 apples. Originally, he had.
(a)        588 apple                             (b) 600 apple
©         672 apple                             (d)  700 apple
Ans 700 apple
23 . In the first 10 overs of a circket game, the run rate was only 3.2 . what should be the run rate in the remaining 40 overs to reach the target of 282 runs ?
(a)        6.25                        (b) 6.5
Ans (a) 6.25
24. How much time will it take for an amount of  Rs 450 to yield Rs 81 as interest at 4.5% per annum of simple interest ?
(a)        3.5                                           (b)  4.5
Ans ( d)   4 years

25. The ratio between the length and the breadth of a rectangular park is 3:2 if a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, the  park (in sq. m) is
(a)15360                                                             (b) 153600
©         30720                                                    (d) None of these
Ans (a) 15360
by R.K. Choubey  Div. Sec. Sagar MP
Anwar Ahmed  Asstt. Div.Sec.Sagar MP

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