Question

The sum of two number is 150.The double of the first number and 5 times of second number are equal to 450.find the numbers.​

Answer 1

x + y = 150

2x + 5y = 450 Using Elimination

Hence y = 50

Therefore, x = 100

Answer 2

150= 100 × 50 ,BECAUSE,

100×2 + 50×5 = 450

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