Practice question for ssc cgl

1. The sum of all natural numbers between 100 and 200, which are multiples of 3 is :
(1) 5000
(2) 4950
(3) 4980
(4) 4900
Ans. 2
2. The sum of the squres of three consecutive natural numbers is 2030. Then, what is the middle number?
(1) 25
(2) 26
(3) 27
(4) 28
Ans. 2
3. The sum of three consecutive odd natural numbers is 87. The smallest of these natural numbers is :
(1) 29
(2) 31
(3) 23
(4) 27
Ans. 4
4. Sum of three consecutive even integers is 54. find the least among them.
(1) 18
(2) 15
(3) 14
(4) 16
Ans. 4
5. The sum of three consecutive numbers is 87. The middle number is
(1) 27
(2) 29
(3) 30
(4) 28
Ans. 2
6. What is the sum of two consecutive even numbers, the difference of whose sqare is 84?
(1) 38
(2) 34
(3) 42
(4) 46
Ans. 3
7. The sum of all the natural numbers from 51 to 100 is
(1) 5050
(2) 4275
(3) 4025
(4) 3775
Ans. 4
8. The sum of all the 2-digit numbers is :
(1) 4995
(2) 4950
(3) 4945
(4) 4905
Ans. 4
9. The sum of first 50 odd natural numbers is
(1) 1000
(2) 1250
(3) 5200
(4) 2500
Ans. 4
10. The sum of all the 3-digit numbers, each of which on division by 5 leaves remainder 3, is
(1) 180
(2) 1550
(3) 6995
(4) 99090
Ans. 4