एक बॉक्स त्याच्या पेनपैकी 3/5 गमावतो, नंतर उर्वरित 1/4; 6 जोडल्याने अर्धी प्रारंभिक गणना होते; प्रारंभिक संख्या?
A36
B24
C30
D40
Answer & Solution
Correct answer: C. 30
दोन्ही काढल्यानंतर 3/10 पेन शिल्लक राहतील, त्यामुळे 6 पेन समान 1/2 − 3/10 = 1/5 प्रारंभिक मोजणीच्या, जी 30 होती.
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