Question

the product 620 x 28a is divisivle by 15. The value of a is

Answer 1

Answer:

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Step-by-step explanation:

→ To show= That product of 620*28a is divisible by 15.

→ we have to find value of a .

→ Let value of a = 15

→ 620*(28×15)/15

→ 620*420/15

→ 260400/15

→ 17360

→ It is there, the number is fully divided with remainder is 0.

→ Now we have so many value of a . as we can take multiple of a.

→ a = 15

→ now its multiple means,

→ 15 × 2 = 30 [this can be also put up in value of a][remainder will be 0.]

→ 15 × 3 = 45 [this can be also put in value of a][remainder will be 0.]

→ so it is true that product 620*28a is divisible by 15.

→ And the value we get after dividing it is 17360.