User:Abiarun2012/sandbox

plz solve guys u need answer all quesion
1. avg marks scored in 2 test is 45/50, 3rd test scores 40/100,. Find the avg marks scored in all 3 tests?

2. 1000 flowers. Out of wic 200 has 14petals, 700 has 16 and remaining has 19. Find min no of petals all 1000 flowers has?

3. x+y=10; x-2y=1. Find 2x-2y? 4. avg of 5 no is 7, avg of 3 no is 9. Find avg of left 2 no?

5. mX+nY=a; jX+jY=a   resolve.

6.avg of 10 stud is 20yr, 4 students age inc to 2yrs. Find the new avg?

7 key strokes(1999)???

8. A can do a work in 20 days similarly b can do in some days, A leaves 10days b4 work gets over. How many days A & B worked??

9. circumference of the circle in a triangle of side 3, 4, 5 is……….. some thing….. find radiys of circle??

10. A=33.33% eff than B. B alone can do a work in some days Find A+B workin together how many days???

11. area of a rect, length inc 20% bredh dec 20% find % area differs??

12.7000 cars in the year2003,1st year 15% dec, 2nd year 20%,… in the year2005 how many cars sold???

13. poultry has chicks and pig, counting head = 100 in nos, countin legs 270 in no. find how many pig, & chic??

14. 2 nos. diff = 45, 1no is dec 12.5% and another inc 25% find the original no?

15. cp of 25 articl is sp of 20.. find profit or loss%??

16. 20% of methel + 50% of some thing…. To get 30% of methel alc find the ratio?

17 find avg speed… certain distance in 60km/hr and remainin in 20km/hr??

18. amt aftr 3yrs is 300, aftr 5yrs is 400… find S.I??

19. pdt 60% inc, 10% discount. Find the profit aftr discount??