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80% of 65 -70% of 70 = What % of 75?

(a) 4

(b) 240

(c) 96

(d)24
in Mathematics Edited by
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Best Answer

Solution -

Let 80% of 65 - 70% of 70 = ?% of 75

⇒ 80 × 65/100 - 70 ×70/100 = x × 75/100

⇒ 5200 - 4900 = 75x

⇒ 300 = 75x

∴ x = 300/ 75 = 4

 Hence, Option (A) is correct

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