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সমন্বিত ৬ ব্যাংক ও ২ আর্থিক প্রতিষ্ঠানের অফিসার (জেনারেল) পদের প্রশ্ন সমাধান [৩১.০১.২০২৬]

সমন্বিত ব্যাংক ও আর্থিক প্রতিষ্ঠান ২০২৬
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The average of six numbers is 30. If the average of first four is 25 and that of last three is 35, the fourth number is:

A30

B28

C25

D20

উত্তর : C.

ভেরিফাইড

শেয়ার :

সম্পর্কিত প্রশ্ন সমূহ

১.

The average of 8 numbers is 8. If 4 is subtracted from each of 6 of the numbers, what is the new average?

A3.5

D6.5

২.

If the side of a square is increased by 10%, by what percent will the area be increased?

16%

21%

32%

100%

৩.

If the radius of a right cylinder is tripled and the height is reduced by 40%, then what would the percentage change in volume?

320%

440%

460%

540%

৪.

What is the angle between the hour and minute hands of a clock at 14:50?

A135°

B140°

C145°

D150°

৫.

The average of a non-zero number and its square is 5 times the number. The number is-

B17

C29

Dnone of these

৬.

How many terms of the arithmetic progression 2,7,12,... should be taken so that their sum equals 354?

A10

B11

C12

D13

৭.

If $2^x=3^y=6^{-z}$ , find the value of $\frac{1}{x}+\frac{1}{y}+\frac{1}{z}$

A-1

৮.

In a simultaneous throw of a pair of dice, what is the probability of getting a total more than 8?

$\frac{5}{18}$

$\frac{13}{18}$

$\frac{1}{4}$

$\frac{7}{18}$

৯.

The H.C.F. of two number is 11 and their L.C.M. is 693. If one of the numbers is 77, find the other.

A99

B89

C79

D69

১০.

Silver is 17 times as heavy as water and copper is 7 times as heavy as water. In what ratio should these be mixed to get alloy 13 times as heavy as water?

1 : 1

2 : 3

1 : 2

3 : 2