A black board is 15 dm 5cm long and 13dm 5cm board. What will be the cost of paintings it at the rate of 25 paise per square centimeters
Guys please help me to find out the ans it's very urgent
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Step-by-step explanation:
firstly 1 dm = 10 cm
therefore, length of board =
15dm5cm= (15 × 10cm) +5cm
= 155cm
breadth of board = 13dm 5cm
=( 13×10cm)+5cm
= 135cm
area of the board = l×b
= 155× 135 = 20925 square cm
1₹= 100paise
cost of painting board=25 paise per square cm.
= (25 × 1/100)₹ per square cm
= 1/4 ₹per square cm
total cost of painting board=
(20925× 1/4) ₹ = 5231.25₹
=. 5231₹25paise
i.e. 5231 Rupees 25 paise
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