alleryStart learning →Odd numbers have the form 2n + 1. For n = 6 the odd number is
A14
B13
C12
D11
Answer & Solution
Correct answer: B. 13
2 x 6 + 1 = 13.
Keep practising Expressions Using Letter-Numbers
Browse all Expressions Using Letter-Numbers questions for Olympiad (Class 7), or explore more Mathematics topics.
Related questions
A chain of n triangles uses 2n + 1 sticks. With 25 sticks, n isIf p = 2q, the expression 3p + 2q equalsA notebook costs n and a pen costs p. Cost of 3 notebooks and 2 pens?A taxi charges ₹20 plus ₹12 per km. Fare for d km isFencing costs ₹15 per metre. A square plot has side s m. Cost of fencing?A triangle has sides x, x + 2 and 2x - 1. Its perimeter isAdd (3x + 2y) and (4x - 5y).Find x - (y - z) when x = 10, y = 7 and z = 2.