# Formulate criteria for divisibility by 6, on 15, on 18, on 30. Task 4. The difference of two numbers is equal to 1.6. 10% of deductible and 25% reduced make in the sum 7.4. Find these numbers.

1 Criteria for divisibility on 2: on 2 even numbers and terminating on 0 Criteria for divisibility by 3 share: on 3 numbers which sum of figures is divided on 3otsyuda criteria for divisibility into 6 share: on 6 even numbers which sum of figures shares on 3.2esli share deductible will-humenshayemoye be - x-1,60,1 (x-1.6) - 10-vychitayemogo0.25kh-25 umenshayemogoy sum =7,4 0,1 (x-1.6) +0.25kh =7,40,1kh-0,16+0,25kh =7,40,35kh =7,4+0,160,35kh =7.56kh =7,56:0,35kh =21,6-umenshayemoye2) 21.6-1.6=20 vychitayemoyeproverka: 0.25kh21.6+0.1kh20=5.4+2=7.4-vernootvt: numbers 21.6 and 20

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