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**Combined 2 Bank Officer Written Full Question Solution 2018**

Exam Type: Written Exam

Post Name: Officer (General)

Written Candidates: **2271**

**Written Exam Date: 26 October, 2018**

**Exam Time: 10 AM to 12.00 PM**

**Combined 2 Bank And Vacancy was:**

1. HBFC-108

2. Ansar VDP Unnoyan Bank-56

Total Vacancy was: **164**

**Let’s See/ Combined 2 Bank Officer Written Full Question Solution 2018**

**Written Math Solution:**

**Math-1:**

A machine X can print one lakh books in 8 hours, machine Y can print the same number of books in 10 hours while machine Z can print them in 12 hours. All the machines are started at 9 A.M. while machine X is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work?

**Solution:**

**Math-2:**

A man went downstream for 28 km in a motor boat and immediately returned. It took the man twice as long to make the return trip. If the speed of the river flow were twice as high, the trip downstream and back would take 672 minutes. Find the speed of the boat in still water and the speed of the river flow.

**Solution:**

Let,the speed of the boat = p kmph

And the speed of the river flow = q kmph

Downstream speed=(p+q)kmph

Upstream speed=(p-q)kmph

From given data,

2*{28/(p+q)} = 28/(p-q)

Or, p = 3q———-(1)

Again second condition, The speed of the river flow = 2q

Downstream speed=(p + 2q) kmph

Upstream speed=(p – 2q) kmph

According to the question,

28/(p+2q) + 28/(p-2q) =672/60

Or, (28/5q) + 28/q = 672/60

Or, q = 3

Hence, the speed of the boat = p kmph = 3*3= 9 kmph and the speed of the river flow = q kmph = 3 kmph.

Answer: 9 & 3 kmph

**Math-3:**

Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. How many hours will take C alone to fill the tank ?

Solution:

1/A+1/B+1/C= 1/6

In 2 hour= 2/6= 1/3

Remain= (1-1/3)= 2/3

Now,

(A+B), 2/3 part can fill in = 7 hr

1 part= 7*3/2= 21/2

1/C= 1/6-2/21= 1/14

1/14 part fill by C in = 1 hr

1 part in = 14 hour

Answer: 14 hour

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**Combined 2 Bank Officer Written Full Question Solution 2018**

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