**11. A number is decreased by 20% and then increased by 40%.Find the percentage change in the number. **

**12. The price of 4 apples and 6 mangoes is Rs.62 and the price of 6 apples and 4 mangoes is Rs.58. Find the price of 3 apples and 5 mangoes. **

**13. A die and a coin are tossed simultaneously. The probability that the die showing a prime number and the coin showing a head is **

**14. In what ratio should a class with average marks 34 be mixed with a class with average 22, so that the average of the mixed class is 31. **

**15. Find the value of (0.8)3– **

**16. Find the number of divisors of 36 excluding 1 and 36. **

**17. Find the greatest **

**18. In how many ways can a person put 4 letters in 4 envelopes such that exactly three letters are in their respective envelopes? **

**19. How many numbers can be formed between 200 and 1200, using the digits 0, 1, 2 and 3, such that there is no repetition? **

**20. If 6x^2 + 6y^2 = 13xy, find x:y. **

CPP

Operating Systems

Core Java

.Net

Software Engineering

Advance Java

Data Base Technologies

Advance Web Programing

Operating Systems

Core Java

.Net

Software Engineering

Advance Java

Data Base Technologies

Advance Web Programing