Question
If 893x2 is divisible by 56, and x > 6, find
x.Solution
ATQ,
Last 3 digits: 3x2
Try x = 2 ⇒ 332 ÷ 8 = 41.5 (not divisible)
Try x = 4 ⇒ 342 ÷ 8 = 42.75 (not divisible)
Try x = 6 ⇒ 362 ÷ 8 = 45.25 (not divisible)
Try x = 8 ⇒ 382 ÷ 8 = 47.75 (not divisible)
Try x = 1 ⇒ 312 ÷ 8 = 39 (divisible)
x = 1 (but not >6)
Try x = 5 ⇒ 352 ÷ 8 = 44 (divisible)
x = 5 (but x > 6 not satisfied)
Try x = 9 ⇒ 392 ÷ 8 = 49 (divisible)
x = 9
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