Instructions

What will come in place of the question mark (?) in the given question?

Question 21

120 % of 750 ÷ 25 - 16 = ? % of 1240 ÷ 31

Solution

Expression : 120 % of 750 ÷ 25 - 16 = ? % of 1240 ÷ 31

=> $$(\frac{120}{100} \times \frac{750}{25}) - 16 = \frac{x}{100} \times \frac{1240}{31}$$

=> $$\frac{6}{5} \times 30 - 16 = \frac{2x}{5}$$

=> $$36 - 16 = \frac{2x}{5}$$

=> $$2x = 20 \times 5 = 100$$

=> $$x = \frac{100}{2} = 50$$

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