Mathematics Quiz For RRB NTPC : 3 February 2020 For Number System

Q1. 1/5 of a number exceeds 1/7 of the same number by 10. The number is.
(a) 175
(b) 200
(c) 225
(d) 150

Q2. A number when divided by 899 gives a remainder 63. If the same number is divided by 29. The remainder will be
(a) 6
(b) 3
(c) 2
(d) 5

Q3. Sum of all natural numbers between 100 & 200, which are multiple of 3 is?
(a) 4980
(b) 4950
(c) 5000
(d) 4600

Q4. The divisor is 25 times the quotient & 5 times the remainder. If quotient is 16, the dividend is
(a) 6400
(b) 6460
(c) 6480
(d) 6490

Q5. The digit in unit’s place of the product 81 × 82 × 83 …………… × 89 is?
(a) 0
(b) 1
(c) 2
(d) 3

Q6. What is the sum of first 19 odd numbers?
(a) 361
(b) 381
(c) 371
(d) 391

Q7. What is the value of 1² + 2² + …………. + 10²?
(a) 315
(b) 395
(c) 375
(d) 385

Q8. The L.C.M. of two numbers is 280 and their ratio is 7 : 8. The two numbers are?
(a) 35, 40
(b) 40, 45
(c) 25, 50
(d) 31, 36

Q9. In a farm there are cows and hens. If heads are counted there are 180, if legs are counted there are 420. The number of cows in the farm is
(a) 130
(b) 50
(c) 150
(d) 30

Q10. A school group charters three identical buses and occupies 4/5 of the seats. After ¼ of the of the passengers leave, the remaining passengers use only two of the buses. The fraction of the seats on the two buses that are now occupied is
(a) 8/9
(b) 7/9
(c) 7/10
(d) 9/10

Solutions

Important Links for RRB NTPC Recruitment 2019
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