Related Questions

The sum of fourth and twelfth term of an arithmetic progression is 20. What is the sum of the first fifteen terms of that arithmetic progression?
A 300
B 120
C 150
D 130
The 3rd and 6th term of an arithmetic progression are 19 and 37 respectively. What is the 13th term?
A 79
B 43
C 45
D 49
The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?
A -29
B -41
C -47
D -35
The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?
A -22
B -25
C -19
D -28
The sum of the fourth and twelfth term of an arithmetic progression is 20. what is the sum of the first 15 terms of the artihmetic progression?
A 150
B 170
C 210
D 270
একজন চাকরিজীবীর আয় ও ব্যয়ের অনুপার ২০ঃ ১৫ হলে, তার মাসিক সঞ্চয় আয়ের শতকরা কত অংশ?
A ৩০%
B ১৫%
C ২০%
D ২৫%
একটি ট্রান্সফরমারের প্রাইমারি ও সেকেন্ডারি তারের ঘূর্ণনের অনুপাত 20ঃ 1 এবং সেকেন্ডারিতে 20 omega রোধ লাগানো আছে। যদি প্রাইমারিতে 220 V প্রয়োগ করা হয় তাহলে এর মধ্যে বিদ্যুৎ প্রবাহ হবে-
A 0.55 A
B 27.5 mA
C 27.5 A
D 5.5 mA
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 5th and 9th term of an arithmetic progression are 7 and 13 respectively. What is the 15th term?
A 22
B 21
C 55
D 59
The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?
A 28
B 87
C 51
D 17

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