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?
Advertisements
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:
`8x^2y^3 - x^5`
Factorize the following expressions:
x6 + y6
Factorize the following expressions:
x4y4 - xy
Simplify : \[\frac{1 . 2 \times 1 . 2 \times 1 . 2 - 0 . 2 \times 0 . 2 \times 0 . 2}{1 . 2 \times 1 . 2 + 1 . 2 \times 0 . 2 + 0 . 2 \times 0 . 2}\]
Write the value of 303 + 203 − 503.
Multiply: (2x + 5y + 6)(3x + y - 8)
Divide: 8a2 + 4a - 60 by 2a - 5
Write the coefficient of x2 and x in the following polynomials
πx2 – x + 2
–b – 0 is equal to ______.
Express the following properties with variables x, y and z.
Associative property of addition
