A number is multiplied and divided by the number 719 The difference between the two results is 312. The given number is:
(a) 133
(b) 49
(c ) 19
(d) 7
Explain with explanation ...
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A number is multiplied and divided by the number 719 The difference between the two results is 312. The given number is:
(a) 133
(b) 49
(c ) 19
(d) 7
Explain with explanation ...
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(a) 133
Step-by-step explanation:
Let the number = x
[tex]( x \div \frac{7}{19} )- \frac{7}{19} x = 312 \\ (x \times \frac{19}{7} ) - \frac{7}{19}x = 312 \\ \frac{19}{7}x- \frac{7}{19}x = 312 \\ \frac{(19 \times 19)x - (7 \times 7)x}{7 \times 19} = 312 \\ \frac{361x - 49x}{133} = 312 \\ 312x = 312 \times 133 \\ x = 133[/tex]