What is the Sum of First 70 Odd Numbers?

Related Mcqs:

1. If the sum of two numbers is 55 and the H.C.F and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocal of the numbers is equal to___________?

   A. 55/601
   B. 601/55
   C. 11/120
   D. 120/11

2. A man invests a certain sum of money at 6% per annum simple interest and another sum at 7% per annum simple interest. His income from interest after 2 years was Rs. 354. One-forth of the first sum is equal to one-fifth of the second sum. The total sum invested was :

   A. Rs.3100
   B. Rs.2700
   C. Rs.2200
   D. Rs.1800

3. The sum of five numbers is 655. The average of the first two numbers is 85 and the third number is 125. Find the average of the two numbers?

   A. 180
   B. 170
   C. 190
   D. 175

4. The L.C.M of two numbers is 48. The numbers are in the ratio 2:3. The sum of numbers is__________?

   A. 28
   B. 32
   C. 40
   D. 64

5. The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers?

   A. 2
   B. 5
   C. 8
   D. Cannot be determined

6. The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is :___________?

   A. 20
   B. 30
   C. 40
   D. None of these

7. The average of 1st 3 of 4 numbers is 16 and of the last 3 are 15. If the sum of the first and the last number is 13. What is the last numbers?

   A. 8
   B. 6
   C. 5
   D. 2

8. The H.C.F and L.C.M of two numbers are 84 and 21 respectively. If the ratio of the two numbers is 1:4, then the larger of the two numbers is____________?

   A. 12
   B. 48
   C. 84
   D. 108

9. The L.C.M of two numbers is 495 and their H.C.F is 5. If the sum of the numbers is 10, then their difference is__________?

   A. 10
   B. 46
   C. 70
   D. 90

10. The sum of cubes of two numbers is 280. If the numbers are in the ratio 2:3, find the smallest number.

    A. 4
    B. 6
    C. 3
    D. 2