यदि ए का नया हिस्सा 13/21 और पुराना हिस्सा 3/7 है तो ए का लाभ प्राप्ति हिस्सा कितना है?
If A new share is 13/21 and old share is 3/7 what is A gaining share?
Explanation opens after your attempt
A. 421
Concept
Write 3/7 as 9/21. 13/21 - 9/21 = 4/21.
Why this answer is correct
The correct answer is A. 4 / 21. Write 3/7 as 9/21. 13/21 - 9/21 = 4/21.
Exam Tip
3/7 को 9/21 लिखें। 13/21 - 9/21 = 4/21 है।
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