MEDIUM
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The 74th Amendment Act mandates the creation of which body at the district level?

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Important Questions on Conic Sections

EASY
Which one of the following pairs of solution is not an acidic buffer?
EASY
Which of the following is the energy of a possible excited state of hydrogen?
MEDIUM
Two newspapers A and B are published in a city. It is known that 25% of the city population reads A and 20% reads B while 8% reads both A and B. Further, 30% of those who read A but not B look into advertisements and 40% of those who read B but not A also look into advertisements, while 50% of those who read both A and B look into advertisements. Then the percentage of the population who look into advertisements is:
EASY
Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionization constant of HA is 10-5, the ratio of salt to acid concentration in the buffer solution will be:
MEDIUM
In a class of 140 students numbered 1 to140 , all even numbered students opted Mathematics course, those whose number is divisible by 3 opted Physics course and those whose number is divisible by 5 opted Chemistry course. Then the number of students who did not opt for any of the three courses is:
EASY
If A=1,2,3,4,B=3,4,5,6,C=5,6,7,8 and D=7,8,9,10; find AC.
EASY
If A=3,5,7,9,11,B=7,9,11,13,C=11,13,15 and D=15,17; find ACD.
EASY
 Find the union of the following pairs of sets:
A=a,e,i,o,u; B=a,b,c
EASY
Find the union of the following pairs of sets:
A=1,2,3;B=ϕ
EASY
If A=3,5,7,9,11,B=7,9,11,13,C=11,13,15 and D=15,17; find AD
EASY
If A=3,5,7,9,11,B=7,9,11,13,C=11,13,15 and D=15,17; find BC.
EASY
If A={x:x is a natural number }, B={x:x is an even natural number }
C={x:x is an odd natural number } and D={x:x is a prime number }, find BC
EASY
If X=a,b,c,d and Y=f,b,d,g, find XY.
EASY
If A=3,5,7,9,11,B=7,9,11,13,C=11,13,15 and D=15,17; find
 ABC
EASY
 Find the union of the following pairs of sets:
X=1,3,5;Y=1,2,3
EASY

If A=3,5,7,9,11,B=7,9,11,13,C=11,13,15 and D=15,17; find

 AB

EASY
If A={x:x is a natural number }, B={x:x is an even natural number }
C={x:x is an odd natural number } and D={x:x is a prime number }, find BD
EASY
Find the intersection of the pair of sets:
 A=1,2,3,B=ϕ
EASY
If A=3,5,7,9,11,B=7,9,11,13,C=11,13,15 and D=15,17; find ADBC
EASY
If A={x:x is a natural number }, B={x:x is an even natural number }
C={x:x is an odd natural number } and D={x:x is a prime number }, find AB