Result With Activity
Time
০ মিনিট ৩৩ সেকেন্ড
16
Questions
16 X 1 = 16
Total Mark
1
Positive Mark
0.25
Negative Mark
#1
Overall Rank
Name : dider kanon
16
-2 (-12.5) Failed
13 (81%)
3 (19%)
1 (6%)
12 (75%)
25 Aug 2025, 12:08 PM
০ মিনিট ৩৩ সেকেন্ড
| বিষয় | সঠিক | ভুল | নম্বর | ফলাফল |
|---|---|---|---|---|
| গাণিতিক যুক্তি | 0 | 5 | -1.25 | -- |
| Bank Preparation | 0 | 4 | -1 | -- |
| Bank Math | 1 | 3 | 0.25 | Pass |
| সার্বিক ফলাফল | Failed | |||
গাণিতিক যুক্তি
1 ) কোন একটি জিনিস নির্মাতা ২০% লাভে ও খুচরা বিক্রেতা ২০% লাভে বিক্রয় করে। যদি ঐ জিনিসের নির্মাণ খরচ ১০০ টাকা হয় তবে খুচরা মূল্য কত?
Correct Answer:
2 ) সমবাহু ত্রিভূজের বাহুর দৈর্ঘ্য যদি ‘a’ হয় তবে ক্ষেত্রফল হবে-
Correct Answer:
3 ) নিচের কোন সংখ্যাটি মৌলিক?
Correct Answer:
4 ) ১ হতে ৪৯ পর্যন্ত ক্রমিক সংখ্যার গড় কত?
Correct Answer:
5 ) টাকায় তিনটি করে আম ক্রয় করে টাকায় ২টি কর্মে বিক্রয় করলে শতকরা কত লাভ হবে
Correct Answer:
Bank Preparation
6 ) Which country is the only one to be surrounded by a single country on all four sides? / কোন দেশটি তার চারদিকে অন্য একটি দেশ দ্বারা পরিবেষ্টিত?
Correct Answer:
7 ) Which of following is different?
Correct Answer:
8 ) Which Country has the largest (biggest) land area in the world?
Correct Answer:
9 ) After the break-up of the Soviet Union which is the largest country in the world in terms of area? / সোভিয়েত ইউনিয়ন ভেঙে যাওয়ার পর আয়তনে পৃথিবীর বৃহত্তম দেশ কোনটি?
Correct Answer:
10 ) In Which continent is Mauritius situated?
Correct Answer:
Bank Math
11 ) (x+5)2 = x2+bx+c সমীকরণে b ও c এর মান কত হলে সমীকরণটি অভেদ হবে?
Correct Answer:
সমাধান:
(x + 5)2 = x2 +
bx + c
x2 + 2.x.5 + 52 =
x2 + bx + c
x2 + 10x + 25 = x2 +
bx + c
x ও ধ্রবক পদের সহগ সমীকৃত করে পাই
b = 10
c = 25
12 ) Three numbers are in ratio 1:2:3 and HCF is 12. The numbers are:
Correct Answer:
Let the numbers be x, 2x and 3x.
The HCF in x, 2x and 3x is x because 1, 2, 3 are prime.
Hence, x = 12; then the other numbers are 24 and 36.
13 ) Find the least number which will leaves remainder 5 when divided by 8, 12, 16 and 20.
Correct Answer:
We have to find the Least number, therefore we find out the LCM of 8, 12, 16 and 20.
8 = 2 × 2 × 2;
12 = 2 × 2 × 3;
16 = 2 × 2 × 2 × 2;
20 = 2 × 2 × 5;
LCM = 2 × 2 × 2 × 2 × 3 × 5 = 240;
This is the least number which is exactly divisible by 8, 12, 16 and 20
Thus,
Required number which leaves remainder 5 is, 240 + 5 = 245
14 ) A heap of pebbles when made up into group of 32, 40, 72, leaves the remainder 10, 18 and 50 respectively. Find least number of pebbles in the heaps.
Correct Answer:
In this type of problem we find the difference of divisors and their remainders.
Here difference,
32 - 10 = 22
40 - 18 = 22
72 - 50 = 22
Here, in each case difference is same i.e. 22
Then required number of pebbles is given by [(LCM of 32, 40, 72) -22]
32 = 2 × 2 × 2 × 2 × 2
40 = 2 × 2 × 2 × 5
72 = 2 × 2 × 2 × 3 × 3
Hence,
LCM = 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 = 1440
Thus, Required number of pebbles, = 1440 - 22 = 1418
15 ) What is the least number of soldiers that can be drawn up in troops of 12, 15, 18 and 20 soldiers and also in form of a solid square?
Correct Answer:
In this type of question, We need to find out the LCM of the given numbers. LCM of 12, 15, 18 and 20; 12=2×2×3;
15=3×5;
18=2×3×3;
20=2×2×5;
Hence, LCM = 2×2×3×5×3 Since, the soldiers are in the form of a solid square. Hence, LCM must be a perfect square.
To make the LCM a perfect square, We have to multiply it by 5,
hence,
The required number of soldiers = 2×2×3×3×5×5 = 900
16 ) Two numbers are in the ratio 3: 4. If their LCM is 240, the smaller of two number is
Correct Answer:
Let,
these two numbers be 3x and 4x
then their LCM = 12x
Now,
according to question,
12x = 240
Or, x = 20
Thus,
the numbers are (3x = 3 × 20) = 60 and (4x = 4 × 20) = 80
Then smaller in this two is 60
