Question

BULLETIN BOARD : Maya bought a bulletin board during lock down period. The length and breadth of a bulletin board are r cm and t cm, respectively.

1. What will be the length (in cm) of the aluminium strip required to frame the board, if 10cm extra strip is required to fix it properly.
a. 2rt + 10
b. r + t + 10
c. 2r + 2t +10
d. 2r + 2t - 10

2. If x nails are used to repair one board, how many nails will be required to repair 15 such boards?
a. 15x
b. 15x ( r + t )
c. 15 ( r + t )
d. 15 rtx​

Answer 1

Answer:

a. 2rt + 10

a. 15x

Step-by-step explanation:

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