Advertisements
Advertisements
प्रश्न
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
उत्तर
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
संबंधित प्रश्न
Factorize: x3 + x - 3x2 - 3
Factorize the following expressions:
`a^3 - 1/a^3 - 2a + 2/a`
Factorize 8a3 + 27b3 + 36a2b + 54ab2
`3sqrt3a^3 - b^3 - 5sqrt5c^3 - 3sqrt15abc`
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 \[\left( \frac{1}{2} \right)^3 + \left( \frac{1}{3} \right)^3 - \left( \frac{5}{6} \right)^3 .\]
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
Write in the form of an algebraic expression:
Area of a square is square of its side.
Construct a formula for the following:
Total wages (₹ W) of a man whose basic wage is (₹ B) for t hours week plus (₹ R) per hour, if he Works a total of T hours.
Express the following properties with variables x, y and z.
Associative property of multiplication
