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.[WpProQuiz 1549]
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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
2. If cos4A-sin4A = X, then value of X is?
3.Unit digit in (164)102+(164)103 =
- 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?
- The angle of depression of top and bottom of a tree from a building is 60o and 30o respectively. What is the height of the building?
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?
- 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?
8.On dividing 189a6b8c by 21a3b2c-3
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?
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?
Let the price be rs.100
cos4A-sin4A = (cos2A+sin 2 A)(cos 2A-sin 2A)
=1(cos2A-(1-cos2A))since (cos2x+sin 2x=1)
Odd powers of any number ending in 4 ends in 4
Even powers of any number ending in 4 ends in 6
Unit digit is 0
Compound interest for 1st year =2000*5/100=100
Compound interest for 2nd year =2100*5/100=105
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