Question
Solve the equation: 3(x − 2) + 4(2x + 1) = 5(2x
− 3) + 7Solution
Expand LHS: 3x − 6 + 8x + 4 = 11x − 2 Expand RHS: 5(2x − 3) + 7 = 10x − 15 + 7 = 10x − 8 Equation: 11x − 2 = 10x − 8 11x − 10x = −8 + 2 x = −6 Answer: x = −6.
You are provided with three sequences below. Determine the values of P, Q, and R, and then identify the relationship among them.<...
5 years ago, A was 1/3 of B’s age. If the ratio of their present ages is 2:5, what will be the sum of their present ages?
The median of the following data will be ___
32,25,33,27,35,29,14,26 and 30.
In an arithmetic progression, the first term is 4 and the sum of the first 20 terms is 650. Find the common difference.
Between 3 and 96, three numbers are inserted to form a GP. Find the second inserted term.
The sum to n terms of the series 1 + 1 + 3 + 1 + 3 + 5 + 1 + 3 + 5 + 7 …………………… is
What is the sum of the first 14 terms of an arithmetic progression if the first term is -21 and last term is 40?
The interest earned when a sum is invested at simple interest of 20% p.a., for 3 years, is Rs. 3000. What will be the total amount received after 2 year...
[16 × 15 + 224 × 5] ÷ 5 = ? × 4
Find the mode of the following data:
6,15,18,6,18,11,23,22,6,18,15,22,12
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