allery20% ਦੀ ਕੀਮਤ ਵਿੱਚ ਕਟੌਤੀ ਤੋਂ ਬਾਅਦ ਅਸਲ ਕੀਮਤ ਨੂੰ ਬਹਾਲ ਕਰਨ ਲਈ ਕਿਹੜਾ ਵਾਧਾ ਕਰਨਾ ਪਵੇਗਾ?
A20%
B15%
C25%
D30%
Answer & Solution
Correct answer: C. 25%
ਕੱਟ ਤੋਂ ਬਾਅਦ ਸਿਰਫ਼ 0.8 ਬਚਦਾ ਹੈ, ਇਸ ਲਈ 0.2/0.8 = 25 ਪ੍ਰਤੀਸ਼ਤ ਦਾ ਵਾਧਾ ਜ਼ਰੂਰੀ ਹੈ।
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