Question

find the sum between 50 and 500 which are divisible by 3 and 5​

Answer 1

$\huge\mathbb{\underline{Answer:-}}$

❥Since 3 5 are coprime any number divisible by both 3 5 will be divisible by (3 x5) = 15. (15 x 33) = 495.

Answer 2

Step-by-step explanation:

here

Sum = 500(500+1)/2-50(50+1)/2

= 250(501)-25*51/2

= 25(10*501-51)/2*15

= 5(5010-51)/2

= 25050-255/2

= 24795/2

= 12397. is the required answer

hope it helps ✌