Question

Find value of Y , If 1 + 4 + 7 + 10 ...... + Y = 287

Answer 1

Answer:

Assuming the "....." means there are no numbers between 10 and Y, the answer is 265. If not then:

Step-by-step explanation:

1. Add all the numbers except the Y

2. Move the numbers from the side they are on to the side of 287:

22 + Y = 287

Y = 287 -22

3. Subtract 22 or whatever number you get from 287; that number is your answer

Hope this helps!