RRB ALP 2018 Practice Test Papers | Arithmetic Questions (Day-50)

Dear Aspirants, Here we have given the Important RRB ALP & Technicians Exam 2018 Practice Test Papers. Candidates those who are preparing for RRB ALP 2018 can practice these Arithmetic Questions to get more confidence to Crack RRB 2018 Examination.

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1. The perimeter of a square is 20 cm, find its area?

1. 20 cm²
2. 25 cm²
3. 40 cm²
4. 45 cm²

2. The average weight of 20 girls is 40kg and 30 boys are 60 kg in a hostel. Then what is the total Average weight of all boys and girls?

1. 45
2. 43
3. 40
4. 48

3. When a number is decreased by 12, it becomes 70% of itself. What is the number?

1. 50
2. 40
3. 30
4. 25

4. Two vessels A and B contain Milk and water in the ratio 3 : 4 and 8 : 5 respectively. Find the ratio in which these mixtures be mixed to obtain a new mixture in vessel C containing Milk and water in the ratio 7 : 6 ?

1. 9: 17
2. 17: 7
3. 7:17
4. 17

5.If the product of two numbers is 320 and the HCF is 8, then the ratio of HCF and LCM is

1. 1: 5
2. 5:1
3. 4: 1
4. 1: 4

6. What is the sum of all the natural numbers from 1 to 35?

1. 620
2. 650
3. 630
4. 640

7. Nikil has sold two mobiles at Rs.2500 each. On one, he gains 25% and on the other, he loses 25%. The gain or loss % on the whole transaction is:

1. 7.5% loss
2. 6.5 % gain
3. 6.25% loss
4. 7.75% gain

8. Two pipes, A can fill the tank in 15 minutes and b can fill a tan in 30 minutes respectively. If both are opened together and at the end of 6 minutes, A is closed, how much longer will the tank take to fill?

1. 3 minutes
2. 6 minutes
3. 9 minutes
4. 12 minutes

9. tan 45° + cot 45° = x, then find the value of x.

1. 0
2. 1
3. 2
4. √2

10. How many words can be formed by using all the letters of word ‘TASTE’?

1. 120
2. 24
3. 60
4. 720

 

Answers:

1.Answer: B

Using the formulas

A=a²

P=4a

20 = 4a

a = 20÷4 = 5cm

Area = (a²) = 5² = 25cm²

2.Answer:  C

Total weight of Girls = 20×40 = 800

Total weight of Boys = 30×60=1200

Average of Boys and girls = 2000/ 50 = 40

3.Answer: B

x – 12 = (70/100)x

100(x-12)= 70x

100x – 1200 = 70x

30x = 1200

X= 40

4.Answer: C

5.Answer: A

Product of two numbers = LCM × HCF

⇒ 320 = LCM × 8

⇒ LCM = 40

Ratio of HCF to LCM = 8 : 40 = 1 : 5

6.Answer: C

Sum of n natural no. = n(1+n)/2

                                    = 35×36/2

                                    =35×18 = 630

7.Answer: C

Loss on total deal,
= (Common loss or gain percentage /10)² = (25/10)²
= 6.25% loss

8.Answer: D
Pipe A = 1/15

Pipe B = 1/ 30

A+B = 1/15 + 1/30 = (1/10)*6 = 6/10 = 3/5 tank filled

Remaining tank will be filled by B

Remaining tank= ( 2/5 )*30 =2*6 =12 minutes

9.Answer: C

tan45 °= 1

cot 45° = 1

1+1 =2

10.Answer:  C

5 letter word can be arranged in 5 different ways = 5! / 2

= 120/2 =60

 

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