1) Find out whether it is prime or not i) 239 ii) 559
a)i only b) ii only c) i but not ii d) ii but not i
2) Find the sum of prime numbers lying between 30 and 70.
a) 438 b) 450 c) 449 d) 439
3)A number when divided by 54 gives a remainder of 35. If the same number is divided by 6, what would be the remainder?
a) 2 b) 5 c) 7 d) 3
4) What is the least value must be assigned to * so that the number 2487*354 is divisible by 9.
a) 3 b) 0 c) 5 d) 7
5) Find the Unit digit in the product 252*13*489*134
a) 2 b) 4 c) 6 d) 8
6) 2426864 is divisible by
a) 9,7 b) 8,11 c) 8,7 d) 9,4
7) For what values of n the following statement are true 32n-1 is divisible by
a) even values of n b) odd values of n c) all values of n d) none of the above
8) Find the smallest number which when divided by 2, 3,4, 5, 6, 7, 8 and 9 leaves respectively remainder of 1, 2, 3, 4, 5, 6, 7 and 8 respectively
a) 2367 b) 2519 c) 2764 d) 2639
9) 23n + 3n is divisible by 5 for
a) All values b) even values c) odd values 4) no values
10) The sum of 3 prime numbers is 100. If one of them exceeds another by 36 then one of the number is
a) 7 b) 29 c) 41 d) 67
11) The sum five terms in an A.P is 60 and the product of the extreme terms is 128. Find the terms
a) 2, 4, 6, 8, 10 b) 12, 14, 16, 18, 20 c) 8, 10, 12, 14, 16 d) 10, 12, 14, 16, 18
12) A gets as many less than B, as B gets less than C. If the total marks secured by them is together is 270 and C get 90 marks more than A. Find the marks secured them individually
a) 30, 90, 150 b) 45, 90, 135 c) 40, 50, 180 d) 35, 70, 165
13) How many terms of the A.P 18, 27, 36 … are needed to give a sum 180?
a) 7 b) 9 c) 6 d) 5
14) The sum of 3 numbers is 9 and the sum of their square is 59. The least of the number is
a) -1 b) 3 c) 2 d) 5
15) The product of three terms in G.P is 216 and their sum 21. Find the terms
a) 3, 6, 12 b) 4, 8, 16 c) 4, 6, 9 d) 3, 6, 9
16) In a G.P the 1st term is 3 and common ratio is 4. The sum of 1st 4 term is
a) 294 b) 276 c) 255 4) 286
17) The third, twelfth and last terms of an A.P are ¾, 3 and 5. Find the 5th term and the number of terms in A.P
a) 1/2, 18 b) 5/4, 20 c) 7/4, 18 d) 3/2, 20
Answers:
1) c 2) d 3) b 4) a 5) c 6) b 7) c 8) b 9) d 10) d 11) c 12) b 13) d
14) a 15) a 16) c 17) b
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