নিচের অপশন গুলা দেখুন
- 16 hours 40 min
- 17 hours
- 16 hours 35 min
- 18 hours
person
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1 উত্তর
সঠিক উত্তর হচ্ছে: 16 hours 35 min
ব্যাখ্যা: Since it climbs 7 meter in every 2 hr. At the end of 14 hours it would have climbed up to 49 mt. In 15th hour it will reach 61 mt. Then drops back to 56 mt in the 16th hour. It will take another 35 min to travel remaining 7 mt since it will be ascending in the 17th hour. Thus, 16 hr and 35 min.
ব্যাখ্যা: Since it climbs 7 meter in every 2 hr. At the end of 14 hours it would have climbed up to 49 mt. In 15th hour it will reach 61 mt. Then drops back to 56 mt in the 16th hour. It will take another 35 min to travel remaining 7 mt since it will be ascending in the 17th hour. Thus, 16 hr and 35 min.