Question

The whole surface area of a rectangular block is 8788 CM square if its Length breadth and height are in the ratio 4 ratio 3 ratio 2 find the difference between its length and height

Answer 1

Answer:

length =52cm

Step-by-step explanation:

Let length. breadth and height be 4x, 3x and 2x respectively.

Whole surface area = 2(lb+bh+lh)

=> (lb+bh+lh) = 8788/2 = 4394

(4×3+3×2+2×4)x² = 4394

=> 26x² = 4397

=> x²=169 => x=13

Therefore, Length = 4x=4×13=52cm