BIHAR CGL PRE MATHS QUIZ-6

Question 1:

The sum of three numbers is 136 . If the ratio between first and second is $2: 3$ and that between second and third is 5:3. Find the second number?

40

48

60

72

Question 2:

If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:

$\frac{55}{601}$

$\frac{601}{55}$

$\frac{11}{120}$

$\frac{120}{11}$

Question 3:

In a division sum, divisor is 10 times of quotient & 5 times of remainder, if remainder is 46 then find the dividend.

5336

5352

5361

5380

Question 4:

Find the least number which when subtracted from 2309 to get a perfect square .

3

4

5

2

Question 5:

The perimeter of a non-square rhombus ABCD is 20 $\mathrm{cm}$. One of its diagonal is $8 \mathrm{~cm} .$ The area of the rhombus is -

$28 \mathrm{sq.} \mathrm{cm}$

$20 \mathrm{sq.} \mathrm{cm}$

$22 \mathrm{sq.} \mathrm{cm}$

$24 \mathrm{sq.} \mathrm{cm}$

Question 6:

The median of the data 3,3,5,7,8,8,9,11,12,12 is:

9

7

8

12

Question 7:

B & C can complete a task in 40 days while A, B & C can complete the task in 20 days. In how many days can A complete the task alone?

20 days

25 days

30 days

40 days

Question 8:

A cloth piece was purchased for Rs. 600 . At what price should it be sold to get a profit of $12.5 \%$ after a tailoring charges of Rs. 40 was paid for?

Rs. 640

Rs. 680

Rs. 700

Rs. 720

Question 9:

An article was bought for Rs. 2,500 . He allows a discount of $12 \%$ on its marked price and still gains $10 \%$. Find the marked price of the articles.

Rs. 3,125

Rs. 3,500

Rs. 3,200

Rs. 3,000

Question 10:

In how many years will Rs. 1,500 double itself under simple interest system of $4 \%$ pa?

20 years

24 years

25 years

27 years