CAT/SBI PO Time and Work Hard question cracked in simple logical way

1.
1 man and 3 women and 4 boys can do a piece of work in 96 hours, 2men and 8 boys can do it in 80 hours, 2men and 3 women can do it in 120 hours. 5men and 14 boys can do it in how many hours
ans 40 hours

2
1 man and  3 women and 4 boys can do a piece of work in 96 hours, 2men and 8 boys can do it in 80 hours, 2men and 3 women can do it in 120 hours. 5 men and 12 boys can do it in how many hours

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When there are two CPs and two SPs

1. A man sells an article at a profit of 14.28%. If he had bought it at 12.5% less and sold it for Rs 70 less, he would have gained (2+ 2/49) %. Find the Initial Selling price (in rupees) of the article. ans 320 2 A man sells an article at a profit of 25%. If he had bought it at 20% less and sold it for Rs 10.50 less, he would have gained 30%. Find the cost price (in rupees) of the article. 3 A man sells an article at 5% profit. If he had bought it at 5% less and sold if for Re. 1 less, he would have gained 10%. The cost price of the article is? 4 A man sells an article at a profit of 25%. If he had bought it at 20% less and sold it for Rs.1050 less, he would have gained 30%. find the cost price of the article? 5 A man sells a book at a profit of 20%.if he had bought it at 20% less and sold it for rs 18 less,he would have gained 25%.what is the cost price of the book

These types of questions can be tackled by single video

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CAT/SSC Famous Advanced Bouncing ball geometric sequence question

1.
A ball is dropped from a height of 45 feet. Every time rebounds 2/3 of the previous Height, Find the total vertical distance travelled by ball before coming to rest.

2.
When a ball falls vertically off a table, it rebounds 75% of its height after each bounce. If it travels a total distance of 490 cm, how high was the table top above the floor?

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