Question

find the sum of first ten múltiples of 5​

Answer 1

Answer:

First term = 5

Last term = 50

According to the formula of sum of terms of an AP,

Sum = n/2 (a + l)

= 10/2 (5+50)

= 5 × 55

= 275

SUM OF FIRST TEN MULTIPLES OF 5 = 275

Answer 2

Step-by-step explanation:

first term =5

last term= 50

n/2×(a+l)

10/2×(5+50)

5×55

275