Question
The sum of the first 10 terms of an arithmetic sequence
is 60 and the 10th term is 5. What is the first term of the sequence?Solution
Sn = (n/2) [2a + (n - 1)d] 60 = 10/2 [2a + (10 - 1)d] 60 = 5 [2a + 9d] 2a + 9d = 12 ------ (i) Given 10th term is 5, so => a10 = a + 9d => a + 9d = 5 ------ (ii) Solving eqn (i) and (ii) we get, => a = 7
What maybe the possible meaning of the phrase ‘ Herculean task’ as mentioned in the above passage?
1. Anita persuaded the women to start working in the food-for-work programme started by an NGO, and for the children she organised sports events.
Which of the following is the fourth sentence in the paragraph?
Which of the following is the fifth sentence of the passage?
1. Packing is one of those many things that I feel I know more about than any other person living.
P. This was hardly what I intended.
Q. ...
- In the given question, parts of a sentence are given below in jumbled order. Arrange the parts in the correct order to form a meaningful sentence.
... In each of the questions given below a sentence is given with three words in bold. Choose the option which gives the correct sequence of these words to ...
Given that 1 is the first sentence, which of the following will be the SECOND sentence after rearrangement?
Which of the following statements is the third statement of the paragraph?
Which should be the last sentence after rearrangement?
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