Advertisements
Advertisements
Question
Shashi used addition to solve a word problem about the weekly cost of commuting by toll tax for ₹ 15 each day. Ravi solved the same problem by multiplying. They both got the correct answer. How is this possible?
Solution
By addition method,
Total weekly cost = (15 + 15 + 15 + 15 + 15 + 15 + 15) = ₹ 105
By multiplication method,
Total weekly cost = Cost of one day × Seven days = 15 × 7 = ₹ 105.
APPEARS IN
RELATED QUESTIONS
Factorize the following expressions:
x6 + y6
125 + 8x3 - 27 y3 + 90xy
Find the value of the following expression: 64x2 + 81y2 + 144xy, when x = 11 and \[y = \frac{4}{3}\]
Separate monomials, binomials, trinomials and polynomials from the following algebraic expressions :
8 − 3x, xy2, 3y2 − 5y + 8, 9x − 3x2 + 15x3 − 7,
3x × 5y, 3x ÷ 5y, 2y ÷ 7 + 3x − 7 and 4 − ax2 + bx + y
Divide: n2 - 2n + 1 by n - 1
Divide: x2 + 4xy + 4y2 by x + 2y
Divide: m3 − 4m2 + m + 6 by m2 − m − 2
The solution of the equation `"3x" - 1/2 = 5/2 + "x"` is ______.
An algebraic statement which is equivalent to the verbal statement “Three times the sum of ‘x’ and ‘y’ is
In the given figure, the length of a green side is given by g and that of the red side is given by p.
Write an expression for the following pattern. Also write an expression if 100 such shapes are joined together.
