Tehseen

A man spends 15% of his money and after spending 60% of the remainder he has 4080. Find the money he had at beginning?

A sells an article to B at a profit of 20%, B sells the same to C at a profit of 10%. If C pay Rs 6600. what did it cost to A?

One person can complete a piece of work in 8 days while other person can complete the same work in 4 days(if both works 10 hours per day). how many hours are required to complete the same work if both persons do it combined?

If a train is running 4 minutes late and losing 4 seconds per minute. how many more minutes will it take for the train to running half an hour late?

Two trains are travelling in opposite direction. one of these id 500m long having a speed of 120km/hr while other is 100m long having a speed of 60km/h. in what time do these cross each other?

Mr Aslam spends 1/3 of his salary on personal affairs, then gives half of the remaining amount for household purpose and finally he invested 75% of final remaining amount for emergency. If he has 1000 in hand now, what is his total salary?

How u take 1.2 and 1.1?

How?

Thank you:)