Mathematics Practice Tests – Sequence and Series

Hello and Welcome to Mathematics Practice Tests - Sequence and Series

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The nth terms of two sequences are Qn = 3.2n-2 and Um = 3.22m-3. Find the product of Q2 and U2.

A. 3    B. 6    C.12    D. 18

Find the sum of infinity of the following series 0.5 + 0.05 + 0.005 + 0.0005 + …

A. $\frac{5}{9}$    B. $\frac{5}{7}$    C. $\frac{5}{8}$    D. $\frac{5}{11}$

The sum of the first n terms of an arithmetic . progression is 252. 1f the. first term is -16 and the last term is 72, find the number of terms in the series.

A. 6    B. 7    C. 8    D. 9

The sum of the progression 1 + x + x2 + x3 + ........ is _______

A. $\frac{1}{1 - x}$      B. $\frac{1}{1 + x}$      C. $\frac{1}{x - 1}$      D. $\frac{1}{x}$

The sum of the first n terms of the arithmetic progression 5, 11, 17, 23, 29, 35,… is

A. n(3n – 0.5)     B. 2(3n + 2)     C. n(3n + 2.5)     D. n(3n + 5)

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