জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা (NSI) সহকারী পরিচালক নিয়োগ পরীক্ষার প্রশ্ন সমাধান ২০২৫

৫১

If the distribution of movie durations is symmetric around the mean of 1.5 hours following a bell curve and if the standard deviation is 20 minutes, approximately what percentage of all movies are longer than 110 minutes?

A

12

B

16

C

20

D

25

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

16

৫২

Amir and Hannan working together can finish a work in 3 hours. If they work alone, Hannan takes 3 times as long as Amir. How long does Hannan take to finish the job alone?

A

6

B

12

C

14

D

16

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

12

৫৩

Find the remainder when 711 + 7111 + 71111 is divided by 8.

A

1

B

2

C

3

D

5

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

5

৫৪

Which of the following is the largest?

A

227

B

1253

C

518

D

279

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

518

৫৫

If f(a) = a - 5 and g(b)= 5 − b, what is the value of the expression ।f(x)।− ।g(x)। + ।f[g(x)]।?

A

।x - 5।

B

2x + 15

C

।- x।

D

।2x - 3।

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

।- x।

৫৬

From a total of 4 engineers and 6 technicians, a team of 3 has to be made, with at least 1 engineer. How many such teams are possible?

A

100

B

120

C

130

D

136

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

100

৫৭

A rectangular fish tank has internal dimensions 80 cm × 60 cm × 15 cm can be filled with tap A at the rate of 680 cm3 every 2 minutes, and can be emptied with tap B at a rate of 140 cm3 per minute. If Jamal leaves both taps are opened at 2:30 pm, when will the tank be filled to 1/3rd its capacity?

A

3.45 pm

B

4.15 pm

C

4.30 pm

D

5.15 pm

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

4.30 pm

৫৮

A 9 cm × 8 cm × 15 cm block of ice is being melted to make identical ice cubes. If surface area any two sides of the cubes has to be 72cm2 how many ice cubes can be made?

A

3

B

5

C

7

D

9

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

5

৫৯

If the summation of roots of two integers is √(11+8√2). What is the summation of the squares of these two integers?

A

55

B

57

C

63

D

78

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

57

৬০

Raisa took one cup of half olive-oil and half vinegar and poured it in a jar that had equal parts of olive-oil, vinegar, and water. If the result is a three-cup mixture of salad dressing, what portion of the dressing is olive-oil?

A

5/12

B

5/6

C

9/16

D

7/18

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

7/18

অনুসন্ধান করুন

জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা (NSI) সহকারী পরিচালক নিয়োগ পরীক্ষার প্রশ্ন সমাধান ২০২৫

If the distribution of movie durations is symmetric around the mean of 1.5 hours following a bell curve and if the standard deviation is 20 minutes, approximately what percentage of all movies are longer than 110 minutes?

Amir and Hannan working together can finish a work in 3 hours. If they work alone, Hannan takes 3 times as long as Amir. How long does Hannan take to finish the job alone?

Find the remainder when 711 + 7111 + 71111 is divided by 8.

Which of the following is the largest?

If f(a) = a - 5 and g(b)= 5 − b, what is the value of the expression ।f(x)।− ।g(x)। + ।f[g(x)]।?

From a total of 4 engineers and 6 technicians, a team of 3 has to be made, with at least 1 engineer. How many such teams are possible?

A rectangular fish tank has internal dimensions 80 cm × 60 cm × 15 cm can be filled with tap A at the rate of 680 cm3 every 2 minutes, and can be emptied with tap B at a rate of 140 cm3 per minute. If Jamal leaves both taps are opened at 2:30 pm, when will the tank be filled to 1/3rd its capacity?

A 9 cm × 8 cm × 15 cm block of ice is being melted to make identical ice cubes. If surface area any two sides of the cubes has to be 72cm2 how many ice cubes can be made?

If the summation of roots of two integers is √(11+8√2). What is the summation of the squares of these two integers?

Raisa took one cup of half olive-oil and half vinegar and poured it in a jar that had equal parts of olive-oil, vinegar, and water. If the result is a three-cup mixture of salad dressing, what portion of the dressing is olive-oil?

সম্পর্কিত পরীক্ষা

কোর্স

অনুসন্ধান করুন

জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা (NSI) সহকারী পরিচালক নিয়োগ পরীক্ষার প্রশ্ন সমাধান ২০২৫

If the distribution of movie durations is symmetric around the mean of 1.5 hours following a bell curve and if the standard deviation is 20 minutes, approximately what percentage of all movies are longer than 110 minutes?

Amir and Hannan working together can finish a work in 3 hours. If they work alone, Hannan takes 3 times as long as Amir. How long does Hannan take to finish the job alone?

Find the remainder when 711 + 7111 + 71111 is divided by 8.

Which of the following is the largest?

If f(a) = a - 5 and g(b)= 5 − b, what is the value of the expression ।f(x)।− ।g(x)। + ।f[g(x)]।?

From a total of 4 engineers and 6 technicians, a team of 3 has to be made, with at least 1 engineer. How many such teams are possible?

A 9 cm × 8 cm × 15 cm block of ice is being melted to make identical ice cubes. If surface area any two sides of the cubes has to be 72cm2 how many ice cubes can be made?

If the summation of roots of two integers is √(11+8√2). What is the summation of the squares of these two integers?

Raisa took one cup of half olive-oil and half vinegar and poured it in a jar that had equal parts of olive-oil, vinegar, and water. If the result is a three-cup mixture of salad dressing, what portion of the dressing is olive-oil?

সম্পর্কিত পরীক্ষা