Question

Find the sum of given below 5,10,15.........50​

Answer 1

Answer:

This is an Arithmetic sequence

The standard sequence being :

a , a+d , a+2d , a+3d , ............... , a+(n-1)d

where a , is the 1st term and d , the common difference.

The sum to n terms of the sequence is :

∣∣ ∣∣¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯aaSn=n2[2a+(n−1)d]aa∣∣−−−−−−−−−−−−−−−−−−−−−−−−−

here a = 5 , d = 10-5 = 15-10 = 5 and n = 10

so answer is 275 kindly mark me brainliest