android applications must be signed ?

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4 men and 3 women finish a job in 6 days and 5 men 7 women can do the same job in 4 days how long wi

The cost of telephone calls in an industrial town is 30 paise per call for the first 100 calls, 25 p

. Find the maximum number of girls among them 2923 bags and 3239 eyeliners can be
distributed in suc

Pand Q started a business with Rs 35000 and Rs. 20000 respectively. They agreed to share the profit

Out of a total of 120 musicians in a club, 5% can play all the three instruments namely guitar,
viol

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Two workers undertake to do a job. The second worker started working two hour after the first. Five

In how many ways can the letters in mmmnnnppqq can be arranged with two n's together?