Question

The sum of 3 consecutive multiples of 5 is 945 find the largest number

Answer 1

Answer:

Let the first multiple be 5a

Second multiple = 5a + 5

Third multiple = 5a + 1

According to question

5a + 5a + 5 + 5a+ 10 = 945

=> 15a + 15 = 945

=> 15a = 930

=> a = 62

First multiple = 62 × 5 = 310

Second multiple = 310 + 5 = 315

Third multiple = 310 + 10 = 320