Question

1. Find the sum of all the multiples of 7 between 100 and 200.

2. 2nd term and 3rd term of an arithmetic progression are 14 and 10
respectively. Find the 51st term of the AP.

3. In an AP, 3rd term is 12 and 50th term is 106, find the 29th term of the AP.

4.Find the three numbers in AP whose sum is 15 and their product is 105.

5. Find the four terms of the AP whose sum is 20 and product of the extremes is 16.

6. Find the four terms in AP whose sum is 28 and product of the extremes is 40

7. The angles of quadrilateral are in AP. If the smallest angle is 15°, find the angles of the quadrilateral.​

Answer 1

the sum of 7 multiples between 100 and 20is 1407