Question

Find the total cost of 3 fountain pen and 3ball pen if the cost of one fountain pen is Rs 65as whole 1/3 and that of a ball pen is Rs 31 as whole 1/6. (Use property) name the property used
Give the answer correct I will mark you as brainlest


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Answer 1

Answer:

1 fountain pen = 65 rs

1 ball pen = 31 rs

3 fountain pen = 65 x 3

3 ball pen = 31 x 3

Property used - Distributive property over addition

65 x 3 + 31 x 3 = ( 65 ) + (31) x 3

(65+31) x 3

96 x 3

= 288

Answer 2

Answer:

289.5

Step-by-step explanation:

1 fountain pen = 65 1

/3

1 ball pen = 31 1

/6

3 fountain pen = 65 1

/3

x 3

3 ball pen = 31 1

/6

x 3

Property used - Distributive property over addition

( 196 / 3 + 187 / 6 ) x 3

( 392 / 6 + 187 / 6) x 3 ( by taking LCM )

579 / 6 x 3

579 / 2

= 289.5

Picture Explanation