Then, (25x + 8) - 22 is divisible by 28
⟺ (25x - 14) is divisible by 28 ⟺ 28x - (3x + 14) is divisible by 28
⟺ (3x + 14) is divisible by 28 ⟺ x = 14.
Therefore Total number of sweets = (25 x 14 + 8) = 358.
So, total time taken = 120 minutes = 2 hours.
Then, 4x + 2y = 2 (x + y) + 14 ⟺ 4x + 2y = 2x + 2y + 14 ⟺ 2x = 14 ⟺ x = 7.
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