হোম
চাকরি পরীক্ষার প্রস্তুতি

বাংলাদেশ ব্যাংক সহকারী পরিচালক (এডি) প্রশ্ন সমাধান ২০১৬

বাংলাদেশ ব্যাংক ২০১৬
গণিত

Back

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in :

A81 min

B108 min

C144 min

D192 min

উত্তর : C.

144 min

শেয়ার :

সম্পর্কিত প্রশ্ন সমূহ

১.

The smallest 6-digit number exactly divisible by 111 is

A111111

B110011

C100011

D110101

২.

The ratio of two numbers is 3:4 and their H.C.F. is 4 . Their L.C.M. is :

A12

B16

C24

D48

৩.

What decimal of an hour is a second ?

A0.0025

B0.0256

C0.00027

D0.000126

৪.

What mathematical operation should come at the place of ‘?’ in the equation : $2 ? 6 – 12 \div 4 + 2 = 11$

A+

B–

C×

D÷

৫.

The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers ?

DNone of these

৬.

Two numbers are such that the ratio between them is 4:7 . If each is increased by 4, the ratio becomes 3:5 . The larger number is :

A36

B48

C56

D64

৭.

A person’s present age is two-fifth of the age of his mother. After 8 years , he will be one-half of the age of his mother . How old is the mother at present ?

A32 years

B36 years

C40 years

D48 years

৮.

If 25% of a number is subtracted from a second number, the second number reduces to its five-sixth .What is the ratio of the first number to the second number ?

ASat Dec 30 1899 01:03:00 GMT+0000 (Coordinated Universal Time)

BSat Dec 30 1899 02:03:00 GMT+0000 (Coordinated Universal Time)

CSat Dec 30 1899 03:02:00 GMT+0000 (Coordinated Universal Time)

DNone of these

৯.

The ages of A and B are in the ratio 3:1 . Fifteen years hence , the ratio will be 2:1 . Their present ages are :

A30 years , 10 years

B45 years , 15 years

C21 years , 7 years

D60 years , 20 years

১০.

Aunik, Kamal and Jamal invested TK. 8000, TK. 4000 and TK. 8000 respectively in a business . Aunik left after six months. If after eight months, there was a gain of TK. 4005, then what will be the share of Kamal ?

A890

B1335

C1602

D1780