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In Arun's opinion, his weight is greater than 65 kg but less than 72 kg. His brother doest not agree with Arun and he thinks that Arun's weight is greater than 60 kg but less than 70 kg. His mother's view is that his weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Arun?

In how many ways can 73920 can be factorised into 2 co prime factors?

find the number of ordered pairs(a,b,c,d) such that abcd=10800?

tournament with 8 teams. Each team play with others one match each. Minimum match a team should win to qualify in top 4. Approach?

How to solve a circular arrangement questions

can help me reasoning

A shopkeeper sells two items at Rs 100 each. One was sold for a profit of 10% and another at a loss of 10%. What was the net profit or loss?

find the remainder when 28! is divided by 899?

find the number of ordered pairs(a,b,c,d) such that abcd=10800?

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