MathsKhaga · Class 6-8
Percent matlab 'har 100 mein'
Dukaan pe likha hai '20% OFF' aur school bag ₹500 ka hai. Kitne paise bachenge?
Socho pehle… phir dekho jawab
₹100! Percent ka matlab hai 'har 100 mein se'. 20% matlab har ₹100 pe ₹20 kam. ₹500 mein paanch baar 100 hai, toh 5 × 20 = ₹100 ki bachat. Bag ₹400 ka.
'Per cent' ka matlab hi hai 'har sau (100) mein'. 50% matlab aadha, 25% matlab chauthaai, 10% matlab dasvaan hissa. Yeh yaad rakho toh aadhe sawaal mann mein hi ho jaate hain.
10% nikalna sabse aasaan hai: number ko 10 se bhaag do. ₹500 ka 10% = ₹50. Ab 20% = do baar 10% = ₹100. 5% = 10% ka aadha = ₹25. Aise hi jod-tod ke koi bhi percent nikal lo.
Test mein 50 mein se 45 aaye? 45 ÷ 50 × 100 = 90%. Cricket mein batsman ne 100 balls pe 80 run banaye toh strike rate 80 — yeh bhi 'har 100 balls pe run' hai!
Ghar pe try karo
Agle baar market jao toh 3 'OFF' waale board dhoondo. Mann mein nikaalo asli bachat kitni hai. Phir apne last test ke marks ko percent mein badlo.
Wow!
Jab news kehti hai ki koi cheez 26% badhi, iska matlab hai: jahan pehle 100 tha, wahan ab 126 hai.
3 sawaal
- ₹200 ka 10% kitna hai?
Jawab dekho
₹20. 10% = 10 se bhaag. 200 ÷ 10 = 20.
- 50% ka matlab kya hai?
Jawab dekho
Aadha. 50 out of 100 = aadha.
- 20 mein se 15 marks aaye, toh percent kitna?
Jawab dekho
75%. 15 ÷ 20 × 100 = 75%.
NCERT se jodo: NCERT Class 7 Maths — comparing quantities (percentage)