Please solve NCR papers

[sowmya571]

hello all





Section I





1)"DONT COUNT EGGS BEFORE THEY ARE HATCHED"
means





2)(0.975*0.975*0.975-1)*(0.975*0.975+0.975-1)





3)The traffic lights at three different road crossings
change after


every 48sec,72sec,108sec respectively.If they change
simultaneously at


8:20:00 hours, then they will change again simultaneously
at


a)8:47:00 b)8:27:00 c)8:27:12 d)8:37:00





4)Sum of reciprocals given(value dont rem),Differnce of
the reciprocals


given,asked to find the no


a)3,1/4 b)2/3,8/9 c) d)





5)Two no 1361,1468(dont rem) when divided by certain no
leaves


remainder 7,11 resp .Find the divisor.





6)Given 15 lt of mixture contains milk:water in the ratio
3:1.How much


more water has to be added to get a mixture containing
milk and water


in the ratio 2:1?





7)the age of the father is 18 years older to his son.After
5 years


fathers age becomes thrice of his son,What is fathers
present age.





8)If the poopulation in '99 is given(dont rem value) &
poplation in


2003 given.What is the percentage increase in population.





9)if the avg of 11 no is given __,sum of first six is
given__,sum of


last six is given__.then find the sixth number.





10)If one of the sides of a triangle is increased by
10%,other side is


increased by 15%.what is the percentage increase in area.





11)A two digit no such that it is thrice the sum of the
digits.Find the


no?





12)x*24=256.find x.





13)2002-(w-1000)-1000=2002 find w.





14)Time and work simple problem





15)Bankers discount-1





16)Compoud interest-1





17-21)Data interpretation.





Given a garph for two students A,B,


x-axis:name of the subject


y-axis:marks obtained by them.


Total marks in each Maths,Phy,chemistry is 200,total marks
in each











Hindi,geo,Eng is 150


Asked 5 Q





17)What is the percentage of marks B achieved in Hindi to
the


percentage of marks B achieved in Physics.





18)What is average marks of B in all subjects.





19)What is the diff in percentage of marks ontained by A
to that of


marks obtained by B in all th subjects.





20)In how many subjects B has got more than 70%.





21)dont rem








22)If the cost of certain no of pens is 450.If more pens could
be


brought at same rate but if the cost of each pen is
reduced by Rs15.What


were the total no of pens he bought.





23)The hand shake problem Shakuntala Devi.





24)A man travels 8 kms to his south.He then takes left and
travels


another 4 kms.he then takes left and travels another
11kms.How far is he


from starting point.





25) Octal equivalent of (BAD)16.sive factorial
computation.

[mnvsriram]

1)"DONT COUNT EGGS BEFORE THEY ARE HATCHED"
means



ANS:THAT MEANS DONT EXPECT THE RESULT BEFORE THE OUTCOME.

IN CONTRAST TO THIS THERE A BOOK BY ARINDUM CHOUDHARY,COUNT YOUR CHICKS BEFORE THEY HATCH.





2)(0.975*0.975*0.975-1)*(0.975*0.975+0.975-1)

I DIDNT FIND ANY .OTHER THAN THE NORMAL MULTIPLICATION









3)The traffic lights at three different road crossings
change after



every 48sec,72sec,108sec respectively.If they change
simultaneously at



8:20:00 hours, then they will change again simultaneously
at



a)8:47:00 b)8:27:00 c)8:27:12 d)8:37:00

THATS NOTHING BUT THE LCM OF 48,72,108.---LCM IS 432 THATIS 7 MINUTES AND 12 SECONDS.SO 8;27:12









4)Sum of reciprocals given(value dont rem),Differnce of
the reciprocals CAN BE DONE BY THE FORMULAE (A-B)^2=(A+B)^2 -4AB. AFTER HAVING A-B WE CAN SOLVE FOR A AND B





given,asked to find the no



a)3,1/4 b)2/3,8/9 c) d)




6)Given 15 lt of mixture contains milk:water in the ratio
3:1.How much



more water has to be added to get a mixture containing
milk and water



in the ratio 2:1?



ANS:15/8 LITRES OF WATER



7)the age of the father is 18 years older to his son.After
5 years



fathers age becomes thrice of his son,What is fathers
present age.



ANS:29.5






22)If the cost of certain no of pens is 450.If more pens could
be



brought at same rate but if the cost of each pen is
reduced by Rs15.What



were the total no of pens he bought.







23)The hand shake problem Shakuntala Devi.







24)A man travels 8 kms to his south.He then takes left and
travels



another 4 kms.he then takes left and travels another
11kms.How far is he



from starting point.



ANS:5



.

[sowmya571]

hello ya



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sowmya