A survey shows that 63% of the Americans like cheese whereas 76% like apples. If x% of the Americans like... View Article
Out of 800 boys in a school, 224 played cricket, 240 played hockey and 336 played basketball. Of the total,... View Article
In a battle, 70% of the combatants lost one eye, 80% an ear, 75% an arm, 85% a leg, x%... View Article
If A and B are not disjoint sets, then n (A ∪ B) is equal to 1) n (A) +... View Article
Given n (U) = 20, n (A) = 12, n (B) = 9, n (A ∩ B) = 4, where... View Article
Let A and B be two sets such that n (A) = 0.16, n (B) = 0.14, n (A ⋃... View Article
If n (A) = 3, n (B) = 6 and A ⊆ B. Then the number of elements in A... View Article
Let U be the universal set and A ⋃ B ⋃ C = U. Then {(A – B) ⋃ (B... View Article
Let A and B be two sets then (A ⋃ B)’ ⋃ (A’ ∩ B) is equal to 1) A’... View Article
If A and B are two sets then (A – B) ⋃ (B – A) ⋃ (A ⋂ B) is... View Article
The shaded region in the given figure is 1) A ⋂ (B ⋃ C) 2) A ⋃ (B ⋂ C)... View Article
A class has 175 students. The following data shows the number of students obtaining one more subjects. Mathematics 100, Physics... View Article
If Na = {an : n ∈ N}, then N5 ⋂ N7 = 1) N7 2) N 3) N35 4)... View Article
If A is any set, then 1) A ⋃ A’ = ɸ 2) A ⋃ A’ = U 3) A... View Article
Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A = {1, 2, 5}, B =... View Article
What is meant by coherence? Coherence describes the relationship between the physical quantities of the wave. Two waves are said... View Article
What is the function of capacitor? The basic function of a capacitor is to store charges and release the charges,... View Article
What causes resistance? The electrical resistance of the material depends on the type of material. The other factors that cause... View Article
What is difference between mass and weight? Mass is the measure of the amount of matter present in an object.... View Article
Does amplitude affect resonance? Resonance is the increase in the amplitude of vibration of the object when the driving frequency... View Article
