Question

Sandhya shared 66 cookies with her friends in 3 days. Each day she gave 4 more cookies than what she gave the day before. How many cookies did she share on the first day​

Answer 1

Step-by-step explanation:

Let the cookies given by Sandhya on the 1st day be x

Then on the next days Sandhya gave x+4 and x+8 cookies as she gave 4 more cookies on the next days

Therefore,66 cookies were given in 3 days and each day x,x+4 and x+8 cookies were given

i.e, x+x+4+x+8=66

3x + 12 = 66

3x = 54

x = 18

Therefore, Sandhya shared 18 cookies on the first day

Hope it helps:)