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The membership of two committees , football committee and cricket committee , must be drawn exclusively form a group of seven people . Farid, Gaffar , Helal , Iftekhar , Jalil , Kalam and Lalit. * Each of the seven people must serve on a committee. * No one can serve on both committees. * Farid cannot be on a committee with Gaffar or with Jalil. * Helal cannot serve on a committee with Iftekhar. If Helal serves on football committee, which of the following must be true?
The value of the expression:sin21° + sin211° + sin221° + sin231° + sin241° + sin245° + sin249° + sin259° + sin269° + sin279° + sin289° is?
H, Y, T, U and P got different ranks based on their marks in the semester examination and viva. H got 3rd rank in the semester exam and 5th rank in the viva. T got 5th position in the semester and 1st position in the viva. P got 2nd position in both exams and viva. Y got 1st position in semester examinations and 4th position in the viva. Who got 3rd position in the viva?
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?
If zafar and Labu sit , respectively, in the 1st and 7th positions , which of the following persons must sit in the 5th position?
A, B, C, D, E, and F are sitting around a circular facing towards the center. They have their birthdays on 2nd, 3rd, 4th, 5th, 6th and 8th. The person born on the 3rd date sits opposite to the person born on 5th. The person born on 3rd does not sit adjacent to E. E sits third to the right of F and was born on 2nd. C sits to the right of E. F was born on the square number date. A sits opposite to C, who was born on the date of the cube number. D sits to the immediate left of E. Who sits exactly between E and B?
Seven friends – P, Q, R, S, T, U and V are sitting in a straight line facing the north in such a way that R is at 5th position from the right and T is at 5th position from the left. Between R and T is U. V is sitting adjacent to T and Q is sitting adjacent to R. P is 3rd to the right of U. Who is sitting at the 3rd position from the left end?
The average of 12 number is 70. The average of the first four numbers is 60 while the average of the last five number is \(33\frac{1}{3}\%\) more than the average of the first four numbers. The 6th number is 20 more than the 5th number while the 7th number is 10 more than the 6th number. By what percent is the 6th number more than the 5th number?
Consider a group comprising of 4 students: Reena, Beena, Meena and Neena, who stand in a row. Reena and Beena stand in 6th and 7th positions respectively from the left. Meena and Neena stand in the 4th and 5th positions respectively from the right. When Beena and Meena exchange their positions, then Beena will be 15th from the left. Originally, Neena's position from the left is:
Consider group of four friends – Ras, Binny, Manas and Nick, who stand in a row. Ras and Binny stand at 6th and 7th positions respectively from the left. Manas and Nick stand at 4th and 5th positions respectively from the right. When Binny and Manas exchange their positions, then Binny will be 15th from the left. Originally, Nick’s position from the left is?