RRB ALP 2018 Practice Test Papers | Arithmetic Questions (Day-10)

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 price of an article is increased by 5%.To restore its original price the new price must be decreased by

a.5.09

b.4.77

c.4.11

d.4.97

2.­ If cos⁴A-sin⁴A = X, then value of X is?

a.cos²A+1

b.cos²A -1

c.2cos²A+1

d.2cos²A-1

3.Unit digit in (164)¹⁰²+(164)¹⁰³ =

a.1

b.6

c.0

d.4

4. The sum of square of two positive numbers is 149 and the square of sum of two positive numbers is 289.What is the product of two numbers?

a.140

b.70

c.210

d.438

5. The angle of depression of top and bottom of a tree from a building is 60^o and 30^o respectively. What is the height of the building?

a.100 m

b.200 m

c.100√3 m

d.data inadequate

6.A man can do a job in 80 hours. After 20 hours his efficiency reduced by 50%.How many additional hours does he take to complete the work?

a.80

b.50

c.60

d.160

7. The average weight of 30 boys in a class is 25 and the average weight of 30 boys and 1 teacher is 27. What is the weight of teacher?

a.87

b.77

c.97

d.47

8.On dividing 189a⁶b⁸c by 21a³b²c^-3

a.19a²b⁴c³

b.9a³b⁶c⁴

c.9a³b⁶c^-2

d.19a²b³c³

9.Simple interest on certain sum of money for 2 years at the rate of  5% per annum is Rs.200.What is the compound interest for second year alone if the interest is compounded yearly?

a.205

b.200

c.110

d.105

10.A reduction in 25% in price of sugar enables to buy 5 kg more for Rs.120.How many Kg can be bought for Rs.120 before price reduction?

a.25

b.15

c.20

d.30

1.Ans:b

Let the price be rs.100

100*105/100=105

105*(100-x)/100=100

X=4.77

2.­ Ans:d

cos⁴A-sin⁴A = (cos²A+sin ² A)(cos ²A-sin ²A)

=1(cos²A-(1-cos²A))since  (cos²x+sin ²x=1)

=2cos²A-1

3.Ans:c

Odd powers of any number ending in 4 ends in 4

Even powers of any number ending in 4 ends in 6

4+6=10

Unit digit is 0

4. Ans:70
5. Ans:d
6. Ans:c

20*1/80+X₁*1/80=1

X₁=60

New efficiency,

20*1/80+X₂*1/160=1

X₂=120

X₂-X₁=60

7. Ans:a

27*31-25*30=87

8.Ans:b

189/21*a^(6-3)b^(8-2)c^(1-(-3))=9a³b⁶c⁴

9.Ans:d

SI=p*2*5/100=200

P=2000

Compound interest for 1^st year =2000*5/100=100

Compound interest for 2^nd year =2100*5/100=105

10.Ans:b

25% of 120=30

Cost of 5 kg=30

Cost of 1 Kg=6

Original price of sugar=6*100/75=8

Total kg of sugar=120/8=15

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