Rupali Bank Limited (RBL) Written Question Solution

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Rupali Bank Limited (RBL) Written Question Solution:

Exam Type: Written

Post: Officer (Cash)

Written Exam date: 28 April 2018

Exam Time: 2.30 To 4.30 PM

See Rupali Bank Limited (RBL) Written Math Solution below:

 

8.

a) 20 weeks

b) A=37.5   And     B=7.5

c) 1% loss

d)  1

e) Table=500Tk   Chair=100Tk. Total=600 Tk.

f) x=.5 or, 1/2  And  y=3

g) 137 travelers

 

See Rupali Bank Limited (RBL) Written Math detail Solution below:

1. A family has 480 kg of rice for X number of weeks. If they need to use the same amount for 4 more weeks, they need to cut down their weekly assumption of rice by 4 kg. what is the value of X?

ATQ,
x (x+4) = 480
x² + 4x – 480 = 0
(x-20) (x+24) = 0
x = -24 or 20

ans : 20 weeks

2. If cos (A+B) = 1/√2 and Cos (A-B) = √3/2, then what is the value of A & B.
[0∘ < A+B ≤ 90∘ And A > B]

As it given, we get–
Cos 45 = 1/√2 = Cos (A+B)
So, A+B = 45
A = 45 – B –(1)

Again,
Cos 30 = √3/2 = Cos (A-B)
A-B = 30
45-B -B = 30
B = 15/2

So, A = 45 – 15/2 = 75/2

Ans : 75/2 & 15/2

3. A shopkeeper sells two shirt at the same price. He makes one on 10% profit and 10% loss on another. What is the total gain or loss percent?

Let, he sells each shirt at 990 tk

total SP = 990*2 = 1980 tk

First CP = 990/90% = 1100
Second SP = 990/110% = 900

Total CP = 1100+900 = 2000 tk

CP > SP
Loss amount = 2000-1980 = 20 tk

So, Loss Percent = (20/2000) * 100
= 1

Ans : 1% Loss

4.
a ^ (q-r)
= {xy^(p-1)}^(q-r)
= x^ (q-r) * y^ (pq – rp -q +r)

Same as
b^ (r-p) = x^(r-p) * y(qr-pq-r+p)
c^ (p-q) = x^(p-q) * y(rp -qr -p + q)

LHS = x^(q-r+r-p+p-q) * y^ (pq – rp -q + r + qr -pq -r + p + rp – qr -p +q)

= x⁰ * y⁰

= 1 * 1

= 1

= R.H.S. [ Proved ]

5. Price of 3 tables and 5 Chairs is 2000 tk. And price of 5 Tables and 7 Chairs is 3200 tk. Find the price of 1 Table and 1 chair?

=>
Table = T & Chair = C
3T + 5C = 2000
21T + 35C = 14000
35C = 14000-21T —(1)

Again,
5T + 7C = 3200
25T + 35C = 16000
25T + 14000 – 21T = 16000
T = 2000/4 = 500 TK

So,
3*500 + 5C = 2000
C = 500/5 = 100 TK

Price of 1 table & 1 Chair = 500+100 = 600 tk

Ans : 600 tk.

6.  Equation solve

Given That,

1/2x + 6/y = 3
12x + y = 6xy
y = 6xy – 12x
5y = 30xy – 60x —(1)

Again, given that–

5/x + 3/y = 11
3x + 5y = 11xy
3x + 30xy – 60x = 11xy
57x = 19xy
y = 3

So,
3 = 6*x*3 – 12x
18x – 12x = 3
x = 3/6 = 1/2

[Proof] ::

At 1st equation –
1/{2 *(1/2)} + 6/3 = 3
1+ 2 = 3

At 2nd equation –
5/(1/2) + 3/3 = 11
10 + 1 = 11

Ans :: (x,y) = (1/2, 3)

7. In a survey at an airport, 55 travelers said that last year they had been to india, 53 said they had been to Nepal, 79 said they had been to Bhutan. 18 had been to india & nepal, 17 had been india & bhutan, 25 had been to nepal & bhutan, 10 had been to all three countries. How many travelers took part in the survey?

Let, Total = T

We know,
All = A+B+C + (All common) – (Two common)

ATQ,
T = 55+53+79 + 10 – (18 +17 +25)
= 197 – 60
= 137

Ans :: 137 Travelers

Detail solution of c:

Detail solution of d:

Detail solution of e:

Detail solution of g:

Detail solution is coming soon……

See Rupali Bank Limited (RBL) Written Math  Question in below image:

 

See Rupali Bank Limited (RBL) Written  Question in below image:

 

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Rupali Bank Limited (RBL) Written Question Solution:

Rupali Bank Limited (RBL)  Written Question Solution is available above. We publish different educational post in our website. Exam question solution is one of the most important concern of our website. Rupali Bank Limited (RBL) Job Circular update at jobstestbd.com . Rupali Bank Limited (RBL) has published job circular on 01 categorizes post. Rupali Bank Limited (RBL) is one of the government bank in Bangladesh. Rupali Bank Limited (RBL) has published a huge job circular  by the Authority. All information regarding the appointment of Rupali Bank Limited (RBL) given on our website jobstestbd.com. We Publish all Jobs Circular Every day, Such as Government Jobs in Bangladesh, Bank Jobs in Bangladesh, Private Jobs in Bangladesh, International NGO in Bangladesh, Private Company in Bangladesh, Private University Jobs in Bangladesh. Bank Jobs Results, Government Jobs Results, Government University Jobs result in Bangladesh and all Part time Jobs in Bangladesh and other educational support are available here in our website. We provide different types of job information with also provide some effective information or resource and job tips which helps to get job easily. We trust that our distributing data helps the activity searchers who are finding a superior employment. We likewise share slanting assets for learner uniquely who is re expanding their insight. Our principle target turns into a trusty occupations round site in Bangladesh by distributing a genuine refresh that enables the joblessness to individuals. All the jobs of this website is not for the unemployed people but also employed people too. All type of suggestions, question solutions of different competitive exam are available here. We provide all type of educational support in our website jobstestbd.com. So everyday tune with our website for all kinds of educational support. Please like our facebook page jobstestbd.com.

 

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Rupali Bank Limited (RBL) Written Question Solution:

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