Mathematics

Q1

Two vessels A and B contain spirit and water mixed in the ratio 5: 2 and 7: 6 respectively. Find the ratio in which these mixtures be mixed to obtain a new mixture in vessel C containing spirit and water in the ratio 8: 5?

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Q4

If the 5th term of an arithmetic sequence is 18 and the 15th term is 58, what is the sum of the first 25 terms?

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Q5

What is the amount of Zakat a person has to pay if he has Rs. 800800 at a rate of 2.5%?

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Q6

The number of times in a day the hour hand and minute hand of a clock are at right angles is:

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Q9

In order to write counting upto 100, how many times the key of the typewriter will have to be pressed?

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Q10

To pack 100 pairs of shoes into cases that each holds 20 shoes, how many cases are needed?

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