Feb 10th, 2022 - CSAT Quiz
1. The sum of all terms of the arithmetic progression having ten terms except for the first term, is 99, and except for the sixth term, 89. Find the third term of the progression if the sum of the first and the fifth term is equal to 10.
(a) 10
(b) 5
(c) 8
(d) 10
2. Find the sum of all possible whole number divisors of 720.
(a) 2012
(b) 2624
(c) 2210
(d) 2418
3. A square has a side of 40cm. Another square is formed by joining the mid-points of the sides of the given square and this process is repeated infinitely, find the area of all the squares thus formed.
(a) 1600
(b) 2400
(c) 2800
(d) 3200
4. The sum of first 20 and first 50 terms of an AP is 420 and 2550. Find the eleventh term of a GP whose first term is the same as the AP and the common ratio of the GP is equal to the common difference of the AP.
(a) 560
(b) 512
(c) 1024
(d) 2048
5. The sum of the first term and the fifth term of an AP is 26 and the product of the second term by the fourth term is 160. Find the sum of the first seven terms of this AP.
(a) 110
(b) 114
(c) 112
(d) 116
Answer:
(1) b
(2) b
(3) a
(4) d
(5) c
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