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Answer

  A B
At first u + 64 u
Every button added to A, 2 removed from B +14 -28
In the end u + 78 u – 28

 

A+B : B = 4 : 1

(u + 78) + (u – 28) = 4(u – 28)

2u + 50 = 4u – 112

2u = 162

u = 81

Box A at first -> u + 64 = 145

 

Tricky question. Couldn’t get answer at first because I thought A : B = 4 : 1

1 Reply 0 Likes ✔Accepted Answer

HI Big devil , thank you.

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You are welcome!  🙂 

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At first —
box A : 1u + 68
box B : 1u

In the end —
box A : 3p
box B : 1p

1u ——- 1p + 28
28/2 = 14 (buttons added to box A)
1u + 68 ——- 3p – 14
1u + 68 ——- 3 x (1u – 28) – 14 = 3u – 98
1u ——- (68 + 98)/(3 – 1) = 83
83 + 68 = 151

Ans : 151 buttons.

1 Reply 0 Likes

HI Tay, thanks.

1 Reply 0 Likes

Hi Atm, you are welcome.

 

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