Related Questions

In a class of 60 students, 20 students like Math, 25 students like English and 30 students like Science. If 5 Students like both Math and Science, 8 Students like both English and Science and 3 students like neither of these subjects, how many students like all of the three subjects?
A 2
B 3
C 4
D 5
Pharmacists recently conducted a study with respect to the reasons their customers purchased eye drops to soothe eye dryness. Dry eyes were more frequently experienced by customers who wore contact lenses than by custorners who did not wear contact lenses. The pharmacists concluded that wearing contact lenses, by itself, can cause contact wearers to have dry eyes.
A An inherited condition can cause both weak eyesight and dry eyes
B Physical exertion causes dry eyes in many people who wear contact lenses.
C Most people who have dry eyes do not wear contact lenses.
D Most people who wear contact lenses do not have dry eyes.
The gypsys are a tribe of strange people. They do not have any fixed home but wander about from place to place and live in tents. they were originally natives of India. But as they reached England from Egypt ,the English took them from Egyptians. this is why they came to be called gypsys. they were beloved to possess strange powers. they could tell your fortune by reading the palm of your hand. it was thought they stole little children to train them in their way of life. whenever a child got lost it was thought that it has been carried away by gypsys so they were arrested and sent for trial. but this attitude towards the Gypsy has gradually changed.The gypsies are people who ---
A have a settled way of life
B came originally from Egypt to England
C are always on the move
D steal children to train them in the way of life
A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?
A Civics and 7th
B Economics and 5th
C Civics and 6th
D History and 7th
The sum of the currents into a junction is equal to the sum of the currents out of that junction.
A True
B False
In a school, 40% of the students are male and all the students like either math or English. If 60% of the students like math and 30% of the students are male who like English, what percentage students of the class are female students who like English?
A 5%
B 10%
C 30%
D 50%
In a class, 60% of children like Mathematics, 45% like Science and 25% like both Mathematics and Science. What is the percentage of children who like at least one subject?
A 70%
B 80%
C 45%
D 55%
Out of 30 student o any class, 20 students like football and 15 students like cricket . The number of students who like both the games is 10. Find the number of students who do not like any of the sports.
A 4
B 5
C 6
D 8
Two circular dials of exactly the same size are mounted on a wall side by side in such a way that their perimeters touch at one point. Dial 1, which is on the left , spins clockwise around its center , and dial 2 , which is on the right spins counter clockwise around its center . (Assume that there is no friction at the point of contact between the dials.) Each dial is marked on its perimeter at three points that are at equale distances around the points arked ondial 1 are N, O, and P and the points marked on dial 2 are X, Y, and Z. If points O and Z are just meeting at the point of contact between the dials , and if dial 1 spins at the same speed as dial 2, what is the smallest number of revolutions of each dial that will bring O and Z together again?
A 1
B 2
C 3
D 4
A pn junction acts as a ___________
A Controlled switch
B Bidirectional switch
C Unidirectional switch
D None of the above

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