In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither blue nor green?

\frac{2}{3}

\frac{3}{4}

\frac{7}{19}

\frac{8}{21}

\frac{2}{3}

\frac{3}{4}

\frac{7}{19}

\frac{8}{21}

2.

The area of a squeare is three-fifths the area of a rectangle. the length of the rectangle is 25 cm and its breadth is 10 cm less than its length. What is the perimeter of the square?

60cm

44cm

80cm

Cannot be determined

60cm

44cm

80cm

Cannot be determined

3.

In every 30 minutes the time of a watch increases by 3 minutes. After showing the correct time at 5 a.m. What time will the watch show after 6 hours?

10:54 am

11:30 AM

11:36am

11:42am

10:54 am

11:30 AM

11:36am

11:42am

4.

A boy read 3/8 th of a book on one day and 4/5 th of the remainder on another day. If there were 30 pages unread, how many pages did the book contain?

২৪০

৩০০

600

800

২৪০

৩০০

600

800

5.

The number 3 divides 'a' with a result of 'b' and a reminder of 2. The number 3 divides 'b' with a result of 2 and 'a' reminder of 1. What is the value of 'a'?

১৩

17

23

২১

১৩

17

23

২১

6.

The lengths of two sides of a triangle are 7 and 11. If the length of the third side is an integer, what is the least possible perimeter of the triangle?

23

১৮

20

২২

23

১৮

20

২২

7.

The average length of the sides of ∆ABC is 12. What is the perimeter at ∆ABC?

24

৩৬

12

১৮

24

৩৬

12

১৮

8.

Which number replaces the question mark?

6

৯

৮

12

6

৯

৮

12

9.

$I f \frac{x}{y} + \frac{y}{x} = 6, t h e v a l u e o f \frac{x^{3}}{y^{3}} + \frac{y^{3}}{x^{3}} i s -$

198

176

১৫৬

১৪৪

198

176

১৫৬

১৪৪

10.

What percentage of numbers from 1 to 70 have squares that end in the digit 1 ?

14

12

20

২১

14

12

20

২১

11.

Average of ten positive numbers is x. If each number increases by 10%, then x-

remains unchanged

may increase or decrease

will increase

is increased by 10%

remains unchanged

may increase or decrease

will increase

is increased by 10%

12.

There are 23 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole. How much more time will it take to reach the last pole?

40 seconds

44 seconds

48 seconds

46 seconds

40 seconds

44 seconds

48 seconds

46 seconds

13.

Find out the wrong number in the series: 190, 166, 145, 128, 112, 100, 91

100

128

145

১১২

100

128

145

১১২

14.

If the n^th terms of an arithmetic progression is 4n+1, then the common difference is-

৪

3

5

6

৪

3

5

6

15.

A boat goes 13km upstream in 39 minutes. The speed of stream is 3km/hr. The speed of boat in still water is-

27km/hr

25km/hr

20km/hr

23km/hr

27km/hr

25km/hr

20km/hr

23km/hr

16.

In a 500m race, the ratio of speeds of two contestants A and B is 3: 4. A has a start of 140m. Then A wins by-

60m

40m

20m

10m

60m

40m

20m

10m

17.

A person buys certain number of marbles at 20 per taka and an equal number at 30 per taka. He mixes them and sells them at 25 per taka. His gain or loss in the transaction is-

2% loss

4% loss

2% gain

4% gain

2% loss

4% loss

2% gain

4% gain

18.

শূন্যস্থানে কোন সংখ্যাটি বসবে? ৩, ৭, . . . . . . ৩১, ৬৩, ১২৭।

১১

১৫

17

20

কোনোটি নয়

১১

১৫

17

20

কোনোটি নয়

19.

২.৫ এর কত শতাংশ ৩.৫ হবে?

১২০%

১৩০%

১৪০%

১৫০%

১২০%

১৩০%

১৪০%

১৫০%

20.

৫ এর কত শতাংশ ৭ হবে?

১২০%

130%

140%

১৫০%

১২০%

130%

140%

১৫০%

গণিত

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither blue nor green?

The area of a squeare is three-fifths the area of a rectangle. the length of the rectangle is 25 cm and its breadth is 10 cm less than its length. What is the perimeter of the square?

In every 30 minutes the time of a watch increases by 3 minutes. After showing the correct time at 5 a.m. What time will the watch show after 6 hours?

A boy read 3/8 th of a book on one day and 4/5 th of the remainder on another day. If there were 30 pages unread, how many pages did the book contain?

The number 3 divides 'a' with a result of 'b' and a reminder of 2. The number 3 divides 'b' with a result of 2 and 'a' reminder of 1. What is the value of 'a'?

The lengths of two sides of a triangle are 7 and 11. If the length of the third side is an integer, what is the least possible perimeter of the triangle?

What percentage of numbers from 1 to 70 have squares that end in the digit 1 ?

Average of ten positive numbers is x. If each number increases by 10%, then x-

There are 23 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole. How much more time will it take to reach the last pole?

Find out the wrong number in the series: 190, 166, 145, 128, 112, 100, 91

A boat goes 13km upstream in 39 minutes. The speed of stream is 3km/hr. The speed of boat in still water is-

In a 500m race, the ratio of speeds of two contestants A and B is 3: 4. A has a start of 140m. Then A wins by-

A person buys certain number of marbles at 20 per taka and an equal number at 30 per taka. He mixes them and sells them at 25 per taka. His gain or loss in the transaction is-

শূন্যস্থানে কোন সংখ্যাটি বসবে? ৩, ৭, . . . . . . ৩১, ৬৩, ১২৭।

২.৫ এর কত শতাংশ ৩.৫ হবে?

৫ এর কত শতাংশ ৭ হবে?