Question

Considering the sum, difference and product, what are the missing numbers?​

Answer 1

i) a-10

  b-10

  c-0

Hint: Write all the factors of 100 (given product). find the suitable combination for 20 (given sum) from the factors. Since 10 x 10 are factors of 100 and 10 + 10 gives 20, given answer.

ii) a-5

   b-3

   c-15

Hint: Given, a+b = 8, a-b= 2. Solve the pair of linear equation to get a=5 and b=3. Then multiply ab to get 15.

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