allery100 km ਲਈ, ਇੱਕ ਕਾਰ ਆਪਣੀ ਸਪੀਡ 20 km/h ਤੋਂ 25% ਵਧਾ ਦਿੰਦੀ ਹੈ। ਸਮਾਂ ਬਚਿਆ?
A1/4 ਘੰਟਾ
B1/2 ਘੰਟਾ
C1 ਘੰਟਾ
D2 ਘੰਟੇ
Answer & Solution
Correct answer: C. 1 ਘੰਟਾ
ਨਵੀਂ ਸਪੀਡ 25 km/h ਹੈ, ਯਾਤਰਾ ਦੇ ਸਮੇਂ ਨੂੰ 100 ÷ 20 = 5 ਘੰਟੇ ਤੋਂ ਘਟਾ ਕੇ 100 ÷ 25 = 4 ਘੰਟੇ ਅਤੇ 1 ਘੰਟੇ ਦੀ ਬਚਤ ਕਰਦੀ ਹੈ।
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