If a number is 3 more than 4/7 of itself, what is the square of the number?

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ഒരു സംഖ്യ അതിന്റെ 4/7 നേക്കാൾ 3 കൂടുതലാണ് എങ്കിൽ സംഖ്യയുടെ വർഗ്ഗം എത്ര ?

A16

B36

C25

D49

Answer:

D. 49

Read Explanation:

സംഖ്യ X ആയാൽ X =4/7 × X + 3 X = 4X/7 + 3 X = (4X + 21 )/7 7X = 4X + 21 3X = 21 X =21/3 = 7 X² =7² = 49

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