alleryબે ટ્રેનો સમાંતર પાટા પર 60 km/h અને 40 km/h ની ઝડપે એકબીજા તરફ આવી રહી છે. તેઓ કેટલી ઝડપથી અંતર ઘટાડે છે?
A24 km/h
B50 km/h
C100 km/h
D20 km/h
Answer & Solution
Correct answer: C. 100 km/h
વિરુદ્ધ દિશામાં ગતિ કરતી હોવાથી તેમની ઝડપનો સરવાળો થાય છે, જે 100 km/h આપે છે.
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