Jack and Jill went up and down a hill. They started from the bottom and Jack met Jill again 20 miles from the top while returning. Jack completed the race 1 min a head of Jill. If the hill is 440 miles high and their speed while down journey is 1.5 times the up journey. How long it took for the Jack to complete the race ?
1085Mr. T has a wrong weighing pan. One arm is lengthier than other. 1 kilogram on left balances 8 melons on right, 1 kilogram on right balances 2 melons on left. If all melons are equal in weight, what is the weight of a single melon?
1 894There are 1000 junior and 800 senior students in a class. And there are 60 sibling pairs where each pair has 1 junior and 1 senior.1 student is chosen from senior and 1 from junior randomly.What is the probability that the two selected students are from a sibling pair?
832There are three trucks A, B, C. A loads 10 kg/min. B loads 13 1/3 kg/min. C unloads 5 kg/min. If three simultaneously works then what is the time taken to load 2.4 tones?
894Rahul took a part in cycling game where 1/5 ahead of him and 5/6 behind him then total number of participants?
26513 machines can complete the work in 4,5, and 6 hours respectively. due to power failures they did the work alternatively. Then what is time taken to complete the work?
1 3969One person start from his home towards college which is 53 km far away. Another person started from college towards home after an hour. the speed of first one is 4kmph and the second one is 3 kmph. Then, what is the distance from home to their meeting point?
1 1028Two persons start walking from the same place in opposite directions. After walking for 4 mts, both of them take the left and walk for another 3 mts. Then what is the distance b/w them?
805three students appear in a test but no one write there name on answer sheet .and they submitted their sheet to teacher . when teacher distributed their answer sheet . what is probability that no one get their own answer sheet.
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