31. एक संगीत विद्यालय में 70% विद्यार्थी लड़के हैं। यदि लड़कियों की संख्या 255 हो तो लड़कों
की संख्या ज्ञात करो?
(a) 575
(b)540
(c) 850
(d) 595
Answers
Answered by
32
Answer:
विद्यालय में लड़के थे 70%
लड़कीयों थी (100-70)=30%
30% = 255
1% = 255/30
70% = (255×70)/30
= लड़को की संख्या है d) 595
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Answered by
6
595
Explanation:
Percentage of girls = 30%
30% = 255
Total number of students (x):
x(30/100) = 255
x = 255(100/30)
x = 850
Total number of students = 850
Number of boys = 70% of the total students
= (70/100) 850
= 85 × 7
Number of boys = 595
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